Jester David
Hero
And that is an excellent reason not to have the OGL take effect until a few months after the DMG is released.The other big they are waiting for is to codify the DMG and get that on lockdown (which they just did). They absolutely didn't want 3pp developers to try to create content without the DMG locked down and MM locked down and even looked at and fixed if need be. The 3pp developers would all have engaged in a contest to get their content out first in order to sell more products, which would have probably negatively affected the content itself and contributed to unnecessary power creep / bloat.
However, they could still talk about what it entails. Heck, they could even release it and let people work on content they cannot legally release for several months. Or release a draft and let people look at it and give feedback, playtest style.