Highly unlikely. Israel will back them along with others in the region.
ISIS/ISIL or whatever you want to call them, will soon bite off more than they can chew and they will be rolled up rather easily. Their conquered “territories” will gain them very little in manpower that is reliable and they will eventually realize their limitations.
Don’t count on it. And this group is stronger and much more dangerous than you know or can imagine.
I would suggest merry that pieces are falling into place