Here are the announced facts:
-Uber Tricks WILL be in the game :D
-Old characters are returning (Elise and Zoe are the only one confirmed)
+Mac Elise Moby Kaori Zoe JP Jurgen Hiro are tags in EA's official Deadly Descents trailer, so they may all be in DD
-Using the mountain man program, they found the best of the best SSX mountains
-Each mountain will have SSX style several tracks carved into them. Some courses will eventually run together or intersect.
-Some of the track design is tailored for some occasional base jumping down the sides of cliffs
-Each mountain will have different kinds of dangers associated with it, such as wind, avalanches, rock slides, temperature, etc.
-Some gear will now affect how your character fares in these harsh weather conditions.
-The weather will change, but a map with a blizzard, will stay with that blizzard
-Rewind feature is confirmed, though there will be some sort of penalty for using it
-Batty says the danger element bridges the gap to an action-adventure game.
In-game equipment like ice axes will be able to be powered up through an RPG-type power-up system and that overusing them will incur an in-game penalty. He says you won't be able to just 'fly through' a level.
-200-300 tracks through 9 peaks. I would say "tracks" are more like "paths" than tracks in the old way of thinking.
-Expect Split/Second-type set pieces on every mountain, but they are not scripted events.
-You pick the tracks you race through a "Google Earth" type interface, which you can zoom in and out and pick which path you'd like the helicopter to drop you on.
-Now the doozy - Batty says they've simplified the process to do tricks from "nine inputs down to two". According to X-box magazine, they watched as he used the two analog sticks for the trick inputs: the left stick jumps and does spins, and sweeping motions with the right stick do tricks. Looks like some sort of Skate mechanic will make it through to the game.
-Batty says he's got a unique way of including the score-multiplier feature from the old games without resorting to large neon-colored snowflakes that ruin the feeling of reality.
-Finally, it seems like it might be a 2012 release. Batty mentions that they have 15-months of development left on the game.
It's sounding like it will still feel like an SSX game, but more extreme and with a few twists, looking forward to it.
Source: EGM magazine