No E3 and/or TGS presence would be a hell of a missed opportunity.
An opportunity specifically to show those who have stopped playing six months ago how much the game has changed - it is these people that are causing 90% off the bad press and these events are one of the very few forums in which SE can ensure they get these peoples' attention.
Otherwise, you'll just get people continuing to pay out the game as unplayable even though their knowledge of the game state is severely outdated.
So I expect it to be there in at least SOME capacity, even if it's just part of a larger presentation and not even playable on the show floor.