What if there are around 50% fans on both sides? Each side will believe that their coins will survive and that their coins will be worth the 222$ actually. They WILL sell the other coins to those fans of the other chain. And what does that mean? Right, halving of the price. Of course, if youre right and there are only a couple fans on one chain, then this wont happen.
If there's a 50/50 split, the increase in block size won't reach the required support so it won't be enacted. We will remain with the same bitcoin we always had, only with two clients. Oh wait, just like now