These are what I hope for:
Opeth: It's been 3 years, and they've said they're entering the studio and aiming for a fall 2011 release.
Katatonia: Not likely, since Viva - TGCD was a 3 year wait, and TGCD - NITND was also a 3 year wait. Still, I'm hoping for a new release since in the fall...