Sony published crash 1-3 so if its not exclusive i think it will only come to pc. I believe Sony published ff7-10 but those games were also on pc.

Who pwns the IP anyway?Is it Activision?

Yes. But who knows who owns crash 1-3 because Sony published them thats why they never been on any other system besides PlayStation 

More money for Activision and more get to play the games, win-win for both.

I had always assumed that this was going to be a timed exclusive/multiplatform since the announcement, just because Activision is the IP holder

I always wondered why Activision never did anything with the IP when there was a VERY big demand for it last generation. I assumed because Sony had some kind of control over the earlier titles. So since Activision owns the IP itself, but Sony had some sort of licensing/publishing rights over the first few games...it may have been the reason we didn't see anything earlier than now. Probably being Sony not wanting this to go multiplat, but couldn't release the game because they don't have rights to the IP. Of course this is all speculation on my part. I really don't know. Just taking a guess.

I'll be waiting for the Switch port then!

Why not, Switch supports Unreal Engine 4 and platformers like this will be quite popular on Switch.

I would be completely fine with a PC release, but a Xbox One and Nintendo Switch release would be disappointing for me.

Not really, it perfectly fits Playstation only.