Finally!
I am glad to write that OpenID Foundation Board has approved the change in the OpenID Process document so that a working group can be started without membership vote.
The change itself requires membership vote, so the notice will go out soon, and it is a month or more away for the new process to get effective, but once that is done, we can spin up WGs pretty quickly. That would certainly help AX 2.0, Auth 2.1 etc.