It isn't even just that the sequel is Rated R, unlike its PG-13 predecessor, and that this uncensored trailer gives us more gore and violence than the anything in the first movie. It's that the Strause Brothers (sibling effects-wizards-turned-directors Colin and Greg) and screenwriter Shane Salerno seem to have the right story for us fans of the original franchises. From the Alien series we have a government/military that doesn't care about civilian life (this is also popular in other horror films of late). From the Predator series we have the thick brush of a forest (almost jungle-like) for more thermal-vision stuff -- which just wasn't as interesting in the cold, arctic setting of the last effort.
Of course, the R-rated stuff is pretty sick, too. As is the seemingly Spielbergian touches: the flashlights in the woods searching for an alien, but it isn't E.T.; a very Jurassic Park-esque scene with Alien young substituted for Velociraptors. Hey, I know it won't possibly be as good as any Spielberg movie nor will it likely be as excellent as the real installments in either franchise. But it still looks awesome. I just hope the trailer hasn't spoiled the best killings -- that Predator knife thrown at the blonde, the double head-shots, the eyes poked out -- or the ending with that final shot with the F-bomb and the Alien kill, which looks climactic. Anyway, one thing is clear: Fox is really going with that Requiem subtitle, and I now realize that I made a mistake with my last AVP2 post; the official title is Aliens vs. Predator -- Requiem (not Alien vs. Predator -- Requiem), as if it really matters.