There is a visual clue on the registration website and the avatar on the Twitter Account. That is the new look insignia, native to the JJ movie.
However, take a look at the back ground on @StarTrek_London 's twitter homepage:
It's our good friend the Enterprise -D
Now are we reading too much into this? Does it mean something?
The Next Generation is celebrating its 25th Anniversary in September 2012 - coincidence? hmmm, we're not sure. Either way we will hopefully know more this week, if you have registered then expect an email this week!