We will definitely be running another D&D Games Day to herald the release of the Monster Manual 2. It will run very much like the Player's Handbook 2 Game Day, but I think they are aiming for the player characters to be around level 4 or 5 as opposed to the Paragon level characters from the last event. I also read that this adventure will be geared for a slightly faster pace.
Both of these changes are good in my opinion.
The date for the event is Saturday, May 23rd, and all are welcome!
D.