I respect your opinion but I disagree because what you are describing is something from a "parallel reality". Syria is closer to defragmentation today than it has been at any time in its history, which is why they are producing this disinformation about "unity of the country", "end of the conflict"... it is the same lie applied to Iraq in 2003 and Libya 2011/2012, look at Libya today...
In practice, the ones who created ISIS/Alqaeda , today HTS, were the CIA and MOSSAD, when terrorists registered with the UN are recruited to attack somewhere,
the ones who recruit them are the CIA, MOSSAD and MI-6. This started in Afghanistan in the 80s, bin Laden and others were recruited by the CIA to attack Russians there.
So, it is very difficult to believe that in a supposed war against "Israel" these terrorists would be recruited to fight against their bosses! They would only be used as cannon fodder: a war between "Israel" and the current fragmented Syria would last like the old "Israel" wars, around 1 to 2 weeks, because "Israel" and the US already have troops in Syria and HTS's weapons are all theirs, Turkey is NATO and would obey their command, it's simple.
Just look at what is happening now, where "Israel" advances into Syrian territory, destroyed a lot of military equipment that was supposed to be used by the "new government" and the puppet government of "al joolani" does nothing and pretends that it is not happening! Al joolani is a spy for the CIA and Mossad, just like Bin Laden once was, he is a character who will be discarded in the future, just like Bin Laden and Saddam Hussein were. "Israel" is just a few kilometers from Damascus, it is obvious that in the future the USA/NATO and Israel will occupy the former Syrian capital and will justify the occupation as a "war against al joolani" that they themselves created: they did this with bin Laden and Saddam Hussein.