Crash hunt competition in games and round sections would be an excellent addition. I am sure players would like to play in a casino with such a low house edge. This platform needs a little more exposure all over the forum and the internet as well.
Competition is always nice but I think it should be also available on the site. They can run special bitcointalk competition although I'm not sure if the interest will be good enough. As proven by many other competitions in this forum, the number of participants is not that big. We have so many active members in the gambling board but only few of them are real gamblers who will be willing to participate in such competition. On site promotions/competitions will be a better option to give something back to real players.