Probably the best thing about all this is that it is much less bloody than most separatist movements.

Look at the video :D
Ukrainian title from Kyivpost.com goes "Armed, pro-Russian separatists lay siege to Donetsk Oblast; at least three dead (VIDEOS, UPDATES)"

So it kinda seems it might get bloody as i doubt Ukrainian government will give any land freely, while i also doubt Russia will let their people get arrested or anything.