EA has informed us eager West and Zampella spectators that the alleged Facebook of the duo, promising a "big time announcement", is a total fake.
Obviously as Respawn Entertainment has just been put together more or less it would be quite impossible for them to have such a game announcement ready in time for this year's E3, let alone next year's. There will be no official Respawn presence at E3 2010.
Respawn has signed with EA Partners which means EA will distribute their wares around the globe, while West and Zampella keep the rights to their newly made IP.
Source: IGN