Shaun of the Dead, the World's End?

Simon, Pegg and Nick Frost have a new film coming out in a couple of months called The World's End. I've seen the trailer once, and it was a very early one as well, so films can change considerably. It looks like while they're trying to complete this pub crawl, in the middle of it, there's some alien robot invasion. But maybe that is something to do with that. Because they've done lots of British films. Is it working title production? I don't know. Maybe. Any other of their works, they have Hot Fuzz, it's a very funny film as well.