New Mastodon is good, new ISIS is good, new Giant Squid is good, new Cattle Decapitation is good and new Wolves in the Throne Room is good.
Stuff I'm looking forward to:
Agalloch
Behemoth
Nile
maudlin of the Well
Kayo Dot
Karl Sanders
Devin Townsend (it's probably going to be more than one...