The military experts I've seen discussing the current situation say they see this going down 2 ways:
1) Russia takes all of Ukraine
or
2) Russia takes the half of Ukraine that is pro-Russian

And for all the protests of Obama, Kerry and the E.U., they won't do anything to stop it.

Looking at the election map (which pretty well corresponds to the region that is majority pro-Russian) the Russians won't see much
resistance inside Ukraine either.

The Crimea island is now completely under Russian control.