kai2: Speculation and contingencies are very important, but IMO before determining a specific course of action one really needs to read the actual document.
octalot: There's no speculation in what I said, these are events that have already happened. DMs' and players' existing own creations are laced with WotC's IP, which we found out are poison pills when WotC claimed that they can deauthorize the OGL 1.0(a).
A future statement by WotC or a more likely a court may turn the poison pills back into useable IP, but that is speculation.
Without the actual released document, all is speculation. You are free to speculate based on a leaked WotC document, but that is not actionable in any legal sense. Why? Because it's not "real"... and therefore legal. That becomes the case only once an actual document is released by WotC.
You cannot legally hold a party responsible for something they might do... or... something you believe they are going to do -- no matter how much evidence you believe points in the direction of their ultimate "guilt." You can only hold them legally responsible for something they actually do... after they have done it.
With that said...
... again...
... it is highly unlikely that WotC has the legal ability to change the OGL, but they certainly are pushing hard for players and creators to sign a new document and give away their rights. IMO it sounds like WotC can't unilaterally change the contract, but there is nothing stopping a player or creator from signing away their rights. Think of it like...
... a vampire.
A vampire cannot enter you home. It has to stop at the threshold. Those are the rules for vampires. But...
... if you invite a vampire in...
(you know the rest of the story)