I have it off at all times because it lights up like a sun. So I would hope that we get a "bloom slider" instead of "on or off".
Searched the site but couldn't see any comment on this so I wanted to be sure it wouldn't get missed.
For me it would probably be:
1: A dynamic camera that can continually follow a species.
2: Less fog, so I can actually see anything.
3: Borderless fullscreen.