It's different and interesting and I applaud you for trying to be innovative, however as mentioned it may not be feasible for snowboarders. A few things that I see could be an issue (just my opinions and not trying to bash you):
1) Weight and size. Even if you did make it bluetooth, you still have to integrate a battery, microchips loaded with firmware, wires, and a special lens/window for the HUD. I personally like my goggles only as big as they need to be to fit my face. Any bigger and heavier and I notice it after 6-8 hours on the mountain.
2) Accidents. As mentioned this could be a potential issue. If speed were one of your readings, people will tend to want to read the HUD. One split second is all it takes to catch an edge, make a mistake etc especially at top speeds (by top speed I mean that of the ability of the rider).
3) If you were trying to market it for the fashion conscious then I think it wouldn't work. Who would know you had an HUD google? They can't see it from the outside.
4) Cost: You'll immediately eliminate the younger genre (which makes up a significant portion of the snowboarding population). Those goggles would be quite expensive. Hell I have a hard time justifying goggles for myself that are over $110. I certainly would not buy goggles that are $300 (arbitrarily speaking).
NOW...I think you can possibly make it work for those on a ski medical team, mountain rescuers, etc. Information is their lifeblood and something like this could appeal to them. If I were one of them, I wouldn't care about "weight", "looks", "cost"...I would care that the goggles gave me the information I need that could help me save someone's life.
Again...it's good to see people innovate. Don't be discouraged and continue to think of good ideas. Keep in mind the niche you want to market these goggles too.
Best of luck!