Observer mode does not output sound to your normal pc speakers, if you are using the Rift headphones. You need to change your settings on the Oculus software (or equivalent) to enable sound mirroring, or whichever output option you wish.
Oculus Touch and HTC Vive are prone to problems with bright UV light, and requires a solid sensor setup. The flapping motion required with Oculus Touch requires your sensors to have a good view of your complete motion, or it may not work correctly.
Future plans:
More dynamic landscape with things to do of course (challenges).
More detail within the existing terrains, and prey to catch (currently the fish only).
Possible survival simulation including weather, defending your territory, nest provider, etc.
Special needs access (head steering is the start of this).