If Assad goes, then Iran & Hizbollah are toast.
No way wil Iran & Hizbollah let their boy fall easily.
If they really do see him imminently falling, then they & Hamas will all lash out at Israel simultaneously in a last-fling Koranic attempt to try & ensure that the Garden of Eden, which is geographically located somewhere in the N.Iraq/N.Syria region, be turned in to Hell, & possibly the whole Earth too in WWIII/Gog & Magog!