WotC isn't going to do the OGL again. They won't do the GSL either. They're going to aim for a middle ground that allows people to produce supplemental material, like adventures and options, but not wholesale reproduction of the core game. They want weird niche rules, adventures, and little campaign stuff. You'll be able to reproduce monster stats in an adventure, or put out a Book of Monsters, but not reprint the Monster Manual. They want SuperGenius Games, not Paizo. I think they were OK with Mutants & Masterminds, but Arcana Unearthed/Evolved, and Iron Heroes, and Spycraft, and Castles & Crusades, are all too close for comfort.