The provocation for war with Syria has already been there; Israel know what they must do to prevent any future confrontation. They are only kidding themselves if they think they could keep the Golan Heights forever; Syria is slowly but surely becoming militarily stronger, if it takes them another ten or twenty years to get to the point where they feel confident enough to retake the Heights, they will. It's just a matter of time.
U.S. confirms ISIS computer expert killed in air strike (Reuters)
from the article: Netanyahu: Iran trying to provoke war between Israel and Syria