Popeye 3D, 300 3D, Narnia 3D, Gulliver’s Travels 3D, etc.

Sony announces Popeye as a CGI animated feature, in 3D.
Warners is testing the conversion of Zack Snyder’s 300 to 3D.
Fox is converting Narnia and Gulliver’s Travels to 3D in post-production.
You can find a list of upcoming 3D projects after the cut.
It’s only a partial list, because I got bored with it.

2010:
Alice In Wonderland
Clash of the Titans
Despicable Me
How To Train Your Dragon
Toy Story 3
Shrek Forever After
Harry Potter And The Deathly Hallows Part 1
Tron Legacy
Legend of the Guardians
(^ formerly Guardians of the Ga’hoole)
Gulliver’s Travels
Chronicles of Narnia 3

2011
Priest
Cowboys and Aliens
Foundation
Zombieland 2
Transformers 3 ?
Underworld 4
Green Lantern
Sucker Punch
The First Avenger: Captain America (?)
The Adventures of Tintin: Secret of the Unicorn
Hoodwinked 2: Hood vs. Evil
Journey to the Center of the Earth 2
Tim Burton’s Frankenweenie
Harry Potter And The Deathly Hallows Part 2

2012:
Spiderman
Avatar 2
The Smurfs 3D
Hobbits 3D