I think it highly unlikely there will be elections in Ukraine any time soon. The Russians tactic of bombing towns to pieces has resulted in the deaths of a disproportionate number of civilian Russian supporters in and around the occupied areas. That’s in addition to those killed in the fighting. Unless Putin ships people in to vote, there’s no chance of his supporters succeeding.
Which is why I’m putting my money on regime change, courtesy of the CIA or other US bad actor.