Do you have a working model? If not how would the users be able to suggest?
What do you mean by BTC Crash site. Do you mean something similar to rocket.run ? Because I love the fun of playing there.
Some suggestions.
1. Active chat between users.
2. Graphical and maybe some unique graphics for added fun.
3. Auto mode with multiple options.
They said they're new licensed site under bustabit, so I'm assuming that this is another online dice site and not a crash site like rocket.run. (Please correct me, OP). Your 1 and 2 suggestions I'm sure will be included in their software since it will run on bustabit source code. Faucet will be a good thing though for starters. My only suggestion is that admins or mods to be active though in this community, specially if gamblers have problems with their deposits/withdrawals.