Moving Mountains, TWDY, Panda Bear (I guess - even though his new songs this year were mediocre), nothing much really.

lets see, there are quite a few. A bunch of Classic rock artists for one:

The Cars- Sharp Subtle Flavor
you can see previews of 2 songs off it here: The Cars | Facebook
Yes- TBA
Rush- Clockwork Angels

I'm soooo excited for all 3 of those, I hope they're all amazing. They are actually my 3 favorite classic rock (I know the Cars aren't completely Classicrock but kinda) bands so the fact that they are all releasing albums next year is sooo Insane!!

the rest:
Lady Gaga- Born This Way
Ludacris- Ludaversal
Big Boi- Daddy Fat Sax: Soul Funk Crusader (expected late 2011)
Shaggy- The Return Of Mr. Boombastic
Sum 41- Screaming Bloody Murder (only if it's the complete opposite of Underclass Hero, but judging by the title and what they've said, it will be
)
Snoop Dogg- Doggumentary Music (sequal to his debut, Doggystyle)

Not a good quality leak though, I'm waiting for the official release.

I forgot about Radiohead and also Trail of Dead. Added to my list.

As of right now, Arms & Sleepers. I'll have to do some research and see what else piques my interest.

Apart from a few that has already been mentioned I’m looking forward to:
A new album from VETO they are one of my favourite bands. They’re in the final stages of mixing the album and they posted a song a few weeks ago and well I’m not really convinced.. They gone in a completely new direction it seems. And while that is interesting and I’m not really feeling it. But they could surprise me and make an amazing album!
The Raveonettes are releasing a new album, I think. They are always great so I’m definitely looking forward to that.

Radiohead and Adele are all I can think of atm.

edit: and POSSIBLY Circle Takes the Square. I think the band was predicting it would be out in 2011.

Genghis Tron has apparently been doing some writing, so if they come through that will be easily my most anticipated album of 2011.

Panda Bear, Radiohead, The Avalanches
...this will finally be the year the new avalanches album comes out! i can feel it

I am looking forward to...

The new Radiohead album (of course)
New Fleet Foxes
The debut Joy Formidable album
The new Scarling album (if it's released this year, seems to be a very long time coming)
The Pains Of Being Pure At Heart
Boards Of Canada (hopefully)
M83
Rival Schools
Bon Iver
Beck (hopefully)