So first off, here's a Roll Call with the trailer. I'm posting this instead of just the original trailer because this shows the full thing with more info.
I'll be honest with you, I'm very very excited for this. The game looks good, and Treyarch has been throwing around some pretty awesome announcements around like they're candy. Having said that, here's some more videos and other info I find.
Campaign:
I like the idea for this. It's some weird stuff in general, but just crazy for a Call of Duty campaign. I'm not sure about the branches of storyline idea but... The gameplay being so flexible is amazing. I usually don't like the gameplay for Call of Duty games, but if I'm able to swap things around and do so much with the vehicles and such I think I'd have an amazing time. The only thing that I'm worried about is if I take control of Soldier X and he dies I don't want the mission to fail. The only thing I'm confused about is how if you die you fail the mission and have to keep going with that loss. But... if you die with David Mason, wouldn't that kinda just end the storyline?
I'm hoping that these missions you can fail are like side missions because otherwise... Lolwut?
Multiplayer:
Besides that little bit, not a whole lot of the multiplayer has been announced. If any of the leaked info is true though, they're making some serious changes that are just... just fantastic.
Only things I can remember that were great were the complete removal of aim assist on all sniper rifles, and the removal of all launchers that don't lock onto vehicles.
Zombies
I'm posting the same video above because the end of it has info about Zombies, but it starts at 4:18.
Now this right here, this is my favorite part. I'm excited for the campaign and I'm excited to see what they're doing with the multiplayer, but Zombies will always be my favorite part of this game.
They're now running it on the Multiplayer engine which is gonna change Zombies drastically in an amazing way. 2x the players, 2x the zombies on the map at once, and bigger more amazing levels. They're also doing a band new storyline with Black Ops II (Which only makes sense, I mean you blow up the Earth with the Moon Easter Egg, can't really go further with that one.) and supposedly there will be a whole campaign for Zombies now. I can't confirm that because I have yet to see where everyone is saying "ZOMBIES CAMPAIGN CONFIRMED!" so if you find something let me know.
On top of all that though there will be new game modes. Here's hoping there's some form of Versus mode, or some type of free roam/practice mode. I love Zombies but it's hard to get really good at it and use to the maps when it gets so hard so fast. It'd be nice to be able to have an easy mode where you couldn't get any achievements or secrets done, but you could get lots of points easily and could learn where all of the doors go.
Having posted all of that I gotta say again... I'm excited for this. It looks good and I'm pretty sure it's gonna feel good. Worst case scenario is that Zombies is the only good thing in the game, which I wouldn't really be mad about lol
If you find anything else let me know and I'll post it.