Trump and every crusader nation should keep their sticky beaks out of Syria, as they'll just make it worse. I doubt the west will be able to resist the temptation to interfere though. Cue the next western war in the M E that will cause untold death and destruction followed by an ignominious retreat after years of wasted treasure and lives.
I suspect that in a year or so, if it goes fundamentalist, we will wish that Assad had remained in charge. He may be a very bad man, but under him Syria wasn't a force attacking western interests. Same as when Iranian fundamentalists overthrew the Shah.