No IMO, if there is any real celebration and if the creators who are still around are honored it will be up to the fans to do it. Their OGL failure indicates that they have not got a clue about their fan base and they do not understand D&D, especially they are ignorant of its roots.
So just throwing it out there, what are your plans for the 50th Birthday of OD&D? Do you have something planned? Have you thought about it yet?