Iran, The Days After: The Succession
By the Basilinna team
March 2, 2026
Your talking points
Ayatollah Khamenei, Iranian politician and Shia cleric who served as the second supreme leader of Iran from 1989 until his assassination on February 28, 2026. (Wikimedia/Khamenei.ir)
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The killing of the Supreme Leader eliminates Iran’s ultimate arbiter and introduces near-term volatility, but the Islamic Republic of Iran retains institutional redundancies in its leadership system.
The central question is not whether the regime survives (it likely will in the near term), but rather who emerges as the next Supreme Leader and what coalition backs that choice.
President Masoud Pezeshkian is described as reform-leaning, but his authority remains subordinate to Iran’s security establishment, so his remaining in office does not by itself signal liberalization.
Succession will likely take one of three paths: hardline security consolidation, pragmatic conservative continuity, or a compromise clerical figure acceptable to the Islamic Revolutionary Guard Corps (IRGC) political elite.
For businesses, over the next 60–90 days it will be important to watch changes in Iran-related sanctions, shipping risks, legal and regulatory changes, and logistics flows in the Gulf.
The Brief
Iran has confirmed the death of Supreme Leader Ali Khamenei following joint U.S.–Israeli strikes, creating the Islamic Republic’s most consequential leadership transition since 1989. An interim leadership council — comprising President Masoud Pezeshkian, Judiciary Chief Gholamhossein Mohseni Ejei, and Deputy Chairman of the clerical Assembly of Experts Alireza Arafi — has assumed temporary duties, but this arrangement is explicitly transitional. Under Iran’s constitutional framework, the Assembly of Experts — an elected body of senior clerics constitutionally empowered to appoint and oversee the Supreme Leader — must ultimately appoint the next Supreme Leader. International focus has therefore shifted rapidly from the strike itself to succession dynamics, potential rise of factions within Tehran, and the risk that leadership uncertainty could shape Iran’s external behavior.
The importance of the Supreme Leader position cannot be overstated. The Supreme Leader is commander-in-chief of the armed forces, exercises ultimate authority over the IRGC and intelligence services, and holds final say on nuclear policy, regional strategy, and major security decisions. In comparison, the presidency — even under reform-leaning figures — operates within parameters set by the Supreme Leader. In practical terms, Iran’s posture toward the region, its willingness for escalation, and its tolerance for international sanctions are driven by the Supreme Leader’s orientation. Crucially, the role also carries religious weight for Shiite communities worldwide because the Supreme Leader serves as the Shia Islam’s highest-ranking clerical authority and the ultimate deciding voice within the doctrine of velayat-e faqih (the rule of the ultimate scholar). This dual political–religious authority is what gives the succession decision such immediate geopolitical, ideological, and market significance.
Beyond the Points
President Masoud Pezeshkian is generally viewed as part of Iran’s reformist or pragmatic camp, particularly on domestic governance and economic management. However, historical precedent shows that reform-leaning presidents have had limited ability to fundamentally alter Iran’s regional or nuclear posture when the security establishment is aligned differently. His current role in the interim council signals institutional continuity rather than political transformation. The decisive arena remains the clerical-security nexus, particularly the Assembly of Experts and the IRGC’s informal but critical influence.
Potential Successors
Recent analyses suggest the succession field is coalescing around a small number of individuals, each representing a different balance between religious legitimacy, security alignment, and regime stability.
Gholamhossein Mohseni Ejei stands out as a leading hardline institutional figure. As judiciary chief and a longtime intelligence and security operator, he is deeply embedded in the conservative establishment and has longstanding relationships across Iran’s security and enforcement institutions. His profile is that of a system enforcer rather than a political reformer, and hiselevation would likely be read as a consolidation move by security-aligned elites. Markets should interpret the selection of Ejei as signaling regime prioritization of internal control and a reduced likelihood of near-term de-escalation.
Mojtaba Khamenei (son of the late Supreme Leader) remains widely discussed in analytical circles due to his relationship with the late Supreme Leader and reported ties to the IRGC and Basij network. Although not a senior marja-level cleric1 his influence behind the scenes has long been noted by Iran watchers. The principal constraint is political optics: the Islamic Republic has historically been sensitive to perceptions of dynastic succession. If Mojtaba were elevated or positioned as kingmaker, it would strongly suggest IRGC backing and a system moving toward tighter security-state dominance. This pathway would likely carry the highest perceived regional risk premium.
Alireza Arafi represents a more traditional clerical continuity profile. As deputy chairman of the Assembly of Experts and head of Iran’s seminary system in Qom, he possesses strong religious institutional credentials and is viewed as system-loyal without being overtly polarizing. While not currently seen as the most likely leading candidate, his presence in the interim structure is notable. His selection would likely signal a system-preserving compromise in which elite cohesion is prioritized over ideological hardening. From a market perspective, this could modestly reduce immediate escalation fears while leaving the core security architecture intact.
Hassan Khomeini is a grandson of Ayatollah Ruhollah Khomeini, the late founder of the Islamic Republic of Iran. Hassan is the most visible of the late Ayatollah’s grandchildren and is generally viewed as relatively moderate within Iran’s clerical establishment. He enjoys close ties to reformists including former presidents Mohammad Khatami and Hassan Rouhani, who both pursued policies of engagement with the West when in office. Hassan, 53, holds a symbolically important role in public life as custodian of his grandfather's mausoleum in southern Tehran. He has never served in government. Some politicians inside Iran have seen him as a rival to hardliners who gained sway under Khamenei, notably his son, Mojtaba.
Other senior clerical figures could still emerge depending on elite bargaining dynamics, particularly if the system seeks a low-visibility consensus candidate. Iran’s leadership transitions historically favor figures who are acceptable across power centers rather than individually dominant. The Assembly of Experts process is formally decisive, but in practice the outcome will reflect alignment between senior clerics and the IRGC leadership.
What This Change Means
The Islamic Republic has not collapsed, but it is now operating under a significant strategic blow. The removal of the Supreme Leader eliminates the system’s fastest internal decision-maker and increases the risk of temporary signaling incoherence. In the near term, the key variable is not the constitutional procedure but whether the regime can demonstrate unified command-and-controlacross the security apparatus and proxy network. The system remains structurally resilient, but it is now operating under heightened internal stress and external pressure simultaneously.
When the next Supreme Leader is chosen, the signal will lie less in the formal announcement than in the profile of the individual and the speed of the decision. A rapid, orderly selection backed visibly by the IRGC would indicate strong elite cohesion and likely stabilize near-term risk perceptions. A prolonged or opaque process would suggest active factional bargaining and extend the volatility window. A hardline security figure would point toward sustained deterrence signaling and higher regional risk, while a clerical compromise candidate would indicate the regime is prioritizing de-escalation and economic stabilization without fundamentally altering its strategic posture.
For companies with regional exposure, the next 60–90 days should be treated as an elevated disruption window. Firms should ring-fence Iran-linked counterparties, stress-test Gulf logistics and airspace exposure, and prepare for sanctions and compliance volatility. Even if there is a stable succession, periods of leadership transition, especially combined with active conflict, historically produce the least predictable regulatory and operational shifts.
1 A marja-level cleric refers to a senior Shiite religious authority (marjaʿ al-taqlid, or “source of emulation”) qualified at the highest level of Twelver Shiite jurisprudence. Maraji are recognized for their scholarly authority, can issue binding religious opinions (fatwas) for followers, and traditionally possess the religious credentials considered most appropriate for the position of Supreme Leader under Iran’s system of clerical rule.
Published by Basilinna Institute. All rights reserved.