No. of Recommendations: 3
Them "running the show" is the current regime continuing, not changing. They'll just pick more mullahs to run the clerical side once the bombing stops. They have always basically run almost all non-clerical Iranian government policies and functions anyway, as many ostensibly "non-IGRC" positions get filled with senior IGRC members and their allies.
The IRGC isn't "little more than a terrorist army" - they are, and have been pretty much been, the government of Iran to at least the same extent as any other faction within the polity for quite a while now.
At any rate (not going to quibble over the past structure) Iran is at the moment essentially a military dictatorship. No one has seen the new Ayatollah and it's entirely possible he was killed in the first strike that took out Khamanei.
