What do you think will happen in "Halo 4"?

As you may or may not know, Halo is a shooter game created by Bungie etc. Its a videogame about space aliens, zombies, and the apocalypse. Thats it in a nutshell.

Its been said that "Halo" the trilogy is finished but it does not mean it is the last game.

Without a known name yet for the NEXT installment of the adventures of Mr. Chief, lets just call it "Halo 4".

What do you think will happen in "Halo 4"? Any hints for the last games? Any theories? etc.

Will we meet other spartans? Will the main character for "Halo 4" even be the chief?

I have no idea what will happen, I have a few ideas on what I WANT to happen though.

Well, Halo 3 ended with masterchief and cortana drifting toward some planet, so I'm hoping they crashland there. And at that time, Master Chief has to fight his way back to civilization, and find other humans or spartans.
Along the way, I would hope that he encounters completely new aliens, because technically it's not supposed to be "Halo" anymore, so no more covenant, or flood, or any of that. At least, not as the main alien life form.
So I think it should be about Master Chief being left essentially alone other than Cortana, and having him have to deal with that, while finding his old community.

Upcoming Halo games:
Halo Wars, a console RTS game, and
Halo Chronicles, being developed with the help of Peter Jackson. There's not much information on it, but it will most likely be a FPS. It will also most likely be delivered through episodic content available for download. It's release is expected to be late this year.

i think that the will be halo 4 because that's what i heard there's probably gonna be stronger aliens and the master chief will wear something different