He is 86. Iran International is not credible (it is a Saudi-sponsored propaganda network).There are signs that Khamenei and aides planned to flee to Russia. It is a matter of time he will leave if the riot doesn't stop or another conflict with Israel. Israel will make sure he leaves by starting another war.
I think Iran is done at this point.
Anyone familiar with Iran, even his opponents, would find the idea he would leave to live in comfort like Assad laughable.
Even those who hate him describe him as an extremist or a lover of the Arabs etc., not a coward or a crook.

