The Ukrainian Supreme Court has temporarily suspended the election results for the Presidential election, so the official declaration of Viktor Yanukovich’s victory is on hold.
It has not suspended the inauguration, so it may largely be a formality, but my guess is that they will give a few days for Yulia Tymoshenko to present evidence.
I don’t expect much in the way of vote fraud to be found, and certainly not enough to change the results, but my record on predictions is a bit spotty.