With all the dev tweets, new MM IP reveal at E3/Gamescom is set in stone.
I just hope it's E3. So far they had pretty good presence at E3's. LBP has sold quite a good numbers in NA, so I am doubtful they are so EU centric with this game. The game is supposed to reinvent 3D UGC type of game making, and if the product has that wow factor, they are more likely to show it a the bigger conference, which will also in a way contrast all them shooters. Only reason why I think it might miss E3 is because Sony has so much to shows, and they are being pretty reserved lately not wanting to overload their conferences with lots of high profile announcements.