My editors are asking what the chances are of genuine regime change in Iran given that the Khamenei government layered in a structure for succeeding him and maintaining power. What is the likelihood of the people's secular revolution pushing the remnants of the Islamic Republic aside with the U.S. and Israeli strikes? We already see who is stepping in to replace Khamenei. Who would be most likely to fill the vacuum if the Islamic Republic falls? Thanks.

As someone who operates a technology company with clients and partners across the Middle East and Central Asia, I follow Iranian political dynamics closely because they directly affect regional stability and business conditions. The Khamenei government built an extraordinarily resilient succession architecture specifically designed to prevent the kind of power vacuum that could enable genuine regime change. The Guardian Council, the Assembly of Experts, and the IRGC form overlapping layers of institutional control that do not depend on any single individual. Even if Khamenei were removed from the equation tomorrow, these structures have their own leadership pipelines and enforcement mechanisms ready to activate. That said, the current situation with US and Israeli military strikes changes the calculation in ways that are genuinely unprecedented. External military pressure combined with internal popular discontent creates conditions that no succession plan was designed to withstand simultaneously. The secular movement inside Iran is real and has demonstrated remarkable persistence despite brutal suppression, but popular movements alone rarely topple governments that control both the military and the economy. The critical variable is what happens within the IRGC itself. If the military strikes degrade IRGC command structures sufficiently, internal fractures could emerge between pragmatists willing to negotiate a transition and hardliners determined to fight. Historical precedent from other authoritarian collapses suggests that regime change becomes possible not when the people rise up, but when the security apparatus fragments. As for who fills the vacuum, the most likely scenario in a genuine collapse would be a period of competing factions rather than a clean handover. Exiled opposition groups, reformist elements within the existing system, and regional military commanders would all compete for legitimacy. The technology angle matters here too because social media and encrypted communications have given Iranian civil society organisational capabilities that previous generations lacked entirely.