True. Today at 6 pm ET. The event lasts 4 hours including interviews and other stuff.
So, let's see... An MP match is approximately 10-15 mins long, and we have 4 MP maps. This means that it takes 1 hour to play every map once. Let's say that they do 2 matches per map, it's 2 hours. Let's say 30 mins of interviews. 1 and a half hour left to play Origins.
There is a chance that they'll do three or even four matches on a map, because it's Call of Duty, you know... So there is a chance that they'll only talk about Origins, and possibly they'll show the new trailer that Treyarch announced today.
I really hope that they'll play even a bit of Origins, because I couldn't care less about MP.