ok so I've been digging, found more videos.
Ski animations look a little bit off, not as much as SNOWs though but then again SNOW don't really offer much competition in that regard. Too wide stance and gaper tuck are my main complaints. SB looks better, but it's much easier to animate. Off axis spins are possible, but it looks like triples etc might be a little too easy. Hoping for a hardcore mode a la Skate 3.
Game seems to play a lot like a mix of Skate and Stoked. Defined drop zones that you can see on the map, also challenges that you only need to run through to activate. Most of them seem to be 'race to the finish' or 'score as many points as possible' kinda thing, hope there's a little more variety than that. Mentions of an FWT style event, with the FWT (out of 100) scoring, which could be cool. Seems that 'Own the spot' style challenges are a thing too.
From what I can tell, multiplayer is a must. I'm not too annoyed by that, I'm rarely far from a high speed internet connection and when I am I don't want video games, but I can see why some people might be. No AI players populating the world, it's all other people.
Challenges like races are directly against other players ghost riders. So basically you don't have to wait to start the race, but you aren't racing against live opponents. A fairly neat solution IMO, also eliminates the kinda player who just wants to push everyone else over.
Powder looks pretty bad, but it is phenomenally hard to simulate, particularly on a pretty low powered computer like a PS4/XB1.
Devs are skiers/snowboarders/paragliders. Kind of expected for people who live in Annecy, just over an hour away from Chamonix.
On the world map you can mark your own 'checkpoints', to help you navigate the line. Seems like a neat feature.
Overall, while this game looks far from 10/10 AMAZEBALLS, I still think it's going to be a lot of fun.
Anyway here's the video links:
Developer interview:
https://www.newschoolers.com/videos/watch/831017/Steep-Developer-Interview---IGN-Live--E3-2016
15 minutes of gameplay (mainly wingsuit and SB, skip to 13:00 for skiing):
https://www.newschoolers.com/videos/watch/831018/15-Minutes-of-Steep-Gameplay