Sure, why not?
We know this trailer is for Call of Duty: Black Ops II, but that's about it. Featuring the phrase "Every story has a beginning...and an end," the video seems to hint at a new Zombies map with a giant killer robot for reasons that don't need to be explained. Because, y'know, killer robot. My attention is all yours.
Whatever this content ends up being, I have to hand it to Treyarch for being unafraid to have a little fun with its games. It's ridiculous, and kind of dumb, but sometimes that's exactly what you need most. Nothing wrong with that.