Can WotC actually claim anything off of Owlcat's Pathfinder games? It's one thing to claim royalties from a game that uses a derivative of your ruleset (something that it's not yet certain they can actually do) but it's another to interfere with an agreement made to a third party to claim revenue for a product that's already mostly complete. I mean, would WotC be able to claim a chunk from the profits the two Pathfinder games have already made? It's bound to be a legal quagmire.
No they cannot. Paizo used OGL 1.0 to create Pathfinder, and any OGL 1.1 version would not affect what's happened in the past, which would include Owlcat's past/current games. The issue is FUTURE Pathfinder games.
