I don't see any reason for you to make your choice until at least E3.
I remember back around E3 2006, when dozens of 3rd parties came out saying that they supported Wii.
We all know how that turned out, don't we?
I'm not panning anything pre-emptively, but caution is far and away better advised than any rash decision.s
Monster Hunter: pissing me off since 2010.