In light of the outcry cause by the recent murder of former Lebanese Prime Minister Rafik al-Hariri there has been a lot of maneuvering and posturing within Syria and I suspect that to a lesser degree there is some in Iran.
The reason is that there has been a resumption of efforts to force Syria to relinquish its grip upon Lebanon. And as has been documented Hizbollah is supported by both Syria and Iran.
And of course this has been mirrored by rhetoric by Syrian officials:
Rats running from a sinking ship. We can hope that the momentum generated by this murder continues and that it leads to better things.