Fedor is saying that "the UFC has a desire" to hold an event in Russia, not that they will be holding an event.
I dont see it happening. As far as MMA goes in Russia, M-1 is still in charge. The UFC has no leverage in negotiating an event there, not without some agreements with M-1, and we all have heard the ugly stories surrounding that.
Add to that, the UFC really has no Russian fighter with name value to sell to the Russian crowd.