Never thought I'd be cheering on the current Russian regime, but yeah, go Russkies! I have no love for Bashar, but this sonuvabitch just won the lottery by becoming a useful pawn for Putin.
Now for the situation at hand, most likely first victims:
1. Al Nusra. A bunch of islamist scumbags, much smaller than ISIS, thus much easier to bomb into smithereens, have Assad's tanks roll all over them, producing tons of PR for Putin. If Putin is serious about making Syria a publicity showcase, these guys are screwed.
2. FSA. The "moderate" opposition. Moderate, my ass. I don't trust them one bit. Likely to get their clocks cleaned right after Al Nusra. Good riddance. Potentially problematic if some Einstein from the DoD decides that giving these guys AA capability would be a good idea. While we're on the topic of FSA, it's time to stop the CIA gravy train. These guys are finished.
3. ISIS. I think Russians will do a showcase coordinated bombing run against these guys every once in a while, just to show that Russia is helping the overall fight against them. Mostly they'll stay away for two reasons:
1. An anti-ISIS campaign would be long and expensive.
2. We're already there, and it's best to stay out of each other's way.
4. The Kurds. The only ones in this entire conflict who at least partially resemble the good guys. I doubt Russia will touch them at all.
Bookmarks