A remake of the Arnold classic, Total Recall this time around will try to stay true to Philip K. Dick's story.  Colin Farrell is starring and the movie has a date of August 3rd, 2012.

Ridley Scott returns to the Science Fiction genre after 25 years.
June 2012

From Academy Award(R)-winning filmmaker Andrew Stanton comes "John Carter"--a sweeping action-adventure set on the mysterious and exotic planet of Barsoom (Mars). "John Carter" is based on a classic novel by Edgar Rice Burroughs, whose highly imaginative adventures served as inspiration for many filmmakers, both past and present. The film tells the story of war-weary, former military captain John Carter (Taylor Kitsch), who is inexplicably transported to Mars where he becomes reluctantly embroiled in a conflict of epic proportions amongst the inhabitants of the planet, including Tars Tarkas (Willem Dafoe) and the captivating Princess Dejah Thoris (Lynn Collins). In a world on the brink of collapse, Carter rediscovers his humanity when he realizes that the survival of Barsoom and its people rests in his hands.

Director:

Andrew Stanton

Cast:

Taylor Kitsch, Lynn Collins, Samantha Morton, Mark Strong, Ciaran Hinds, Dominic West, James Purefoy, Daryl Sabara, Polly Walker, Bryan Cranston, Thomas Hayden Church, Willem Dafoe

Release: March 9th, 2012

All we know is that it's coming in 2012 and it'll be in 3D.  There's not even an official title yet.
Director: Marc Webb
Stars: Andrew Garfield as Peter Parker, Emma Stone, Rhys Ifans

Starring: Robert Downey Jr., Chris Evans, Chris Hemsworth, Jeremy Renner, Mark Ruffalo, Cobie Smulders, Scarlett Johansson, Clark Gregg, and Samuel L. Jackson
Release: May 4, 2012

A darker, original, animated fairy tale by Pixar.  The main protaganist is a Scottish princess Merida (voice of Kelly Macdonald).
Change your fate.  Summer 2012

Interesting take on the story and the trailer shows promise (nice soundtrack).
Synopsis:
In the epic action-adventure Snow White and the Huntsman, Kristen Stewart (Twilight) plays the only person in the land fairer than the evil queen (Oscar(r) winner Charlize Theron) out to destroy her. But what the wicked ruler never imagined is that the young woman threatening her reign has been training in the art of war with a huntsman (Chris Hemsworth, Thor) dispatched to kill her. Sam Claflin (Pirates of the Caribbean: On Stranger Tides) joins the cast as the prince long enchanted by Snow White's beauty and power. The breathtaking new vision of the legendary tale is from Joe Roth, the producer of Alice in Wonderland, producer Sam Mercer (The Sixth Sense) and acclaimed commercial director and state-of-the-art visualist Rupert Sanders.

Bilbo Baggins, a Hobbit, journeys to the Lonely Mountain accompanied by a group of dwarves to reclaim a treasure taken from them by the dragon Smaug.
Director: Peter Jackson
Stars: Hugo Weaving, Elijah Wood, Orlando Bloom