AbdulAlhazred
Legend
Right, this is BY FAR IMHO the most likely scenario, 1.1 will simply lack a 'or other version' clause, or it will be an 'or newer version' clause instead, and it will contain a 'you must cease to distribute under any content under other versions of the OGL' clause. WotC can absolutely do THAT. And they can then only ever release anything under the 1.1 OGL terms ever again, and utilize their Section 9 right to effectively stop letting people directly license from them under 1.0a even for 5e stuff. I just assert that doesn't destroy OTHER CONTRIBUTORS rights to still do so WRT to currently 1.0a OGL licensed material.Trying to guess what terms WotC will actually insist on is commercial speculation, not legal speculation. From the legal point of view, they could do what you suggest, or they could make it a requirement of entering into the new licence that a party cease to distribue any work licensed under the current OGL. I don't see that either would pose any legal problem.
The problem with ANY ARGUMENT to the contrary is that the only value of the OGL is that WotC couldn't revoke it at a moment's notice. Without that surety the license never had any value whatsoever, it was simply a sham. The whole thing was a Potemkin Village of an 'agreement' in which one side would simply use the other side's reliance on it as a weapon against them! The THEORY was that WotC was also relying, but I know of no instance where they have ever distributed anything they didn't author themselves under OGL terms. They benefited from the good will and much enlarged D&D community that the license created, maybe, but in effect they seem to, at least now think, the license is simply a form of control they can exercise over the community. If that has been their intent, then the license is a sham. It purports to put everyone on an even footing so we can all distribute this content, but in effect if it is revocable then it merely served to dupe us all into putting on a slave collar!