Well - I sure was wrong, or at least I didn't expect Russia and Iran to abandon Assad that quickly.. This has all been pretty shocking and lightning fast. Makes you really question Assad's 2021 election win with 95% of the vote - surely that was legit, right?
If it can happen in Syria, why not Iran? The IRGC is spread thin and weakened. The regular army probably has little interest in propping up the Ayatollah and nobody is going to help Iran. Russia can't and China won't.
What concerns me now is the fate of the Kurds. Turkey is very likely to muscle in now that Iran and Russia have been squeezed out and I'm sure their #1 priority will be ethnic cleansing of the Kurds in one fashion or another. The dream scenario I think would be for the Kurds to have their own state in NW Syria, but I have a hard time seeing that happen. The best outcome is probably some form of representative nation with respect for all the ethnic groups.
edit: ****, Iran is probably going to build a nuclear bomb now...they got no other options.