It's a bold strategy, Cotton. Let's see if it pays off for 'em.

But seriously, if this goes wrong, if it's agreed that OGL 3rd and 5th Edition derivatives can continue under OGL1.0 in perpetuity, Wizards of the Coast and Hasbro stand to lose control of AD&D. They have already have lost significant mindshare to Pathfinder (a 3rd Ed fork), but this could be the final nail.

There's more than enough money in keeping OGL1 to fight this. This is a stupid fight for WotC to have picked. Any goodwill they had will be actively invested into other rulesets.