Some dates have already been reported here, some haven't, but here is a list of what we can expect to see in 2011:
January 4th:
Case 39
The Last Exorcism
Machete
January 11th:
Piranha (2010)
January 18th:
Buried
January 25th:
Dead Space 2
Saw 3D aka The Final Chapter
February 1st:
Hatchet II
Chain Letter
Let Me In
February 8th:
I Spit On Your Grave (1978/2010)
My Soul To Take
February 15th:
The Twilight Zone SSN 3 (Blu-ray Only)
February 22nd:
Daughters Of Darkness (Blu-ray Only)
2011 Rumored Titles:
April:
Tron (Blu-ray Only)
Tron: Legacy
Alfred Hitchcock's The Birds (Blu-ray Only)
October:
Star Wars 35th Anniversary Collection Episodes I-VI (Blu-ray Boxset)
These dates are tentative and subject to change