Even if it does take off, it's entirely a game design problem. Production, whether it's the engineering side or the art side, won't change even slightly.
Yes, it will. A few I could think of:
- Normal mapped lighting doesn't work well in VR, because with stereo vision you can see the surface is flat.
- Tricks like always drawing users weapons/hands over all geometry (e.g. Half Life 2) are horrible in VR.
- Maintaining a consistently high FPS (90+) is of very high priority.
Anyway, In general I'm a big fan of VR. It really opens up a lot of possibilities. Feeling like you're there (to an extent) really changes the feeling of a game. Enemies I wouldn't have thought intimidating suddenly are, eye contact evokes a reaction, exploring is suddenly interesting and so on. I'm expecting to see some really interesting games/demos over the next two years (although I have no doubts it will remain niche in that time).