So let's discuss the campaign a bit. It's gonna start straight after Firestorm and continue all the way to 2050 I heard.
That's around 20 years we're talking about here. There would have to be a whole lot of missions required and knowing EA that always seem to take the easy way out, I think they'll create no more than 12 of them that really wouldn't do justice to so many years. But oh well, I guess that's not a big deal.
What worries me more is the recreation of the old environment and technology. I'm of course talking about the disappearance of Tiberium faunas (Tib plant life), Blossom trees (those trees that spread Tib in the earlier games), Tiberium creatures (We were promised there would be tiberium creatures in C&C3 but all we got were some Headcrab look-a-likes they called Visceroids; which are supposed to be gooey orange blobs).
The tech used back then also needs to be taken in account. It would neither feel right or make any sense at all if you used the same units with no trace of older units and structures, and the environment was exactly the same in right after Firestorm ended as in 2047. The Forgotten also still need to exist but aren't as vital in my oppinion (They were pretty much killed off by two lines of text in the Intel Database, saying they just disappeared for no known reasons).
So well, on to the story. I just wanna say, I wanna know more about what happened with CABAL, I remember the awesome ending in the FS Nod campaign with the Kane/CABAL merge and the "Redirectives must be reasessed" thing, they really left it open for a cool story there, I was really disappointed when they killed him off in one of the Intel Database entries in C&C3 (like with the mutants). There's a slight chance we'll get to see him again though, but I wouldn't bet on it, hopefully he'll at least be mentioned.
We'll also get to play _during_ the Third Tiberium War, how will that work out? Since we already know what happened, I assume we'll play through some other events that happened during TW3 that we didn't experience or heard about.
The game will also take place until 3 years after TW3 (or so I heard), it will basically cover the alien invasion most likely and maybe even the aftermath (3 years is a long time). I'm hoping to get to know more about Kane and his connections with the Scrin since he's in their database but not his generic codes (correct me if I'm wrong).
There were also something about a second alien race...
Anyhoot, I'm hoping to see some drastic events, maybe Earth will be more and more consumed by Tib and Scrin, slowly terraforming it, making it look less and less like Earth as we know it. I have a feeling Scrin have a few tricks up their sleeves anyway... Anything could happen here.
Ok I'm done babbling on.

Sorry for the wall of text.
So people, start discussing / speculating.

By the way, I'll be damned if they use the damn same sets for every live action scene for Nod / GDI and hardly any CG stuff like with C&C3.