So what you are saying is that we are right where we started in 2011, except for:
1. Three quarters of the population now hate Assad with a vengeance.
2. And now they hate Russia too.
3. ISIS are there.
Which makes you wonder why Assad didn't "make peace" in 2011 instead of slaughtering 400,000 people.
Answer: Because they wanted him and the rest of his minority, unelected Shi'a shite out of power in 2011, and they fucking certainly do now.
And trust me, they will have long, long memories of this one.
Like I said, he may have won a conventional war - only with Putin's help - but now he can look forward to lots of terrorism until he fucks off.