Before or after he finished?
Analogy is apt, there's no reason for him to push it any farther. He's got Crimea, Ukraine is destabilized and falling into in a mini-civil war of sorts, and he's fortified his support at home. He's already won in a sense. The current status quo is good for him, he basically did the same thing in Georgia.
Worst case scenario he can get involved again if he needs to. His hand will only strengthen in the coming months. The cold of winter increases his leverage, and an outstanding bill against Ukraine gives him justification for any fiddling with the gas supply. The world will have moved on from this to other more interesting current events. The U.S. will be distracted by the midterm elections and a lame duck congressional session.
He protected his assets, showed his neighbors what happens if you don't play nice with him, and is happy to let a corrupt Kiev government flounder under it's own ineptitude, at least for the moment.
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That monster in the mirror, he just might be you. -Grover