What's next? Western leaders whine about Putin, Putin ignores them, Crimea becomes independent. Despite all the controversy over the events in Ukraine, they're quite possibly the most tame out of recent events. So far no one has died in the "invasion".
I don't see any possibility of war, especially since a lot of Ukraine's military leaders are defecting or at the very least refusing to follow the new government. Besides if Russia wanted Ukraine that bad they would've invaded long ago... It's not like they've had their military there for hundreds of years...
I really doubt Crimea will become independent. With the current events, it's more likely they become a part of Russia.
Why would Russia choose now of all times to annex Crimea, when they could've done that in '91 with no controversy? An independent Crimea is most beneficial to Russia, as it will support the Kremlin, while satisfying the international community as it is not forced into the control of either the Russian Federation or the rebels in Kiev.