It's nice to have a list of all the upcoming attractions in one place. Most of the lists I've found elsewhere only list coasters, or only are for specific park chains.
Apocalypse (Six Flags America)
Flying Turns (Knoebels)
The Swarm (Thorpe Park)
Big Grizzly Mountain Runaway Mine Cars (Hong Kong Disneyland)
Mammoth (Holiday World)
Toy Story World (Hong Kong Disneyland)
RC Racer (Hong Kong Disneyland)
Grizzly Gulch (Hong Kong Disneyland)
Mystic Point / Mystic Manor (Hong Kong Disneyland)
All Rides (Shanghai Disney Resort)
Stinger (Dorney Park)
All Rides (Paramount Theme Park - Spain)
Codename: Mythos (Europa Park)
Goliath (Six Flags New England)
Superman: Ultimate Flight (Six Flags Discovery Kingdom)
Nemesis: What Lies Beneath (Alton Towers)
Sky Mountain (Mirabilandia - Brazil)
10 Inversion Coaster (Hopi Hari - Brazil)
Turtleshere 360 (SeaWorld Florida)
Turtles 4D (SeaWorld Florida)
Happy Harbor Water Fortress (SeaWorld Florida)
5D Theater (Walibi World Holland)
All Rides - including the new 11 inversion coaster (Jingling Happy World - China)
Test Track Reimagining (Epcot)
Personally, I'm not all that impressed with carsland. A flying saucer redo, a Test Track with a new theme, and the mater ride doesn't sound like that much quality. On the other hand, I am apparently in minority when i say I love the Avatar Land concept. I think great rides will come from it.
P.S. Is it free to register? I'm going to Orlando for a week in a few days, and I want to post a trip report. However, if it costs money I won't bother.