The chances are low and odds are against unless the new casino aims to be a specific game focused gambling platform. The long term success will happen but there are questions have to be answered by the team before going to accept this decision: Will they be able to advertise among the new casino and gain the trust of players among all the old established brand casinos?
Casinos come and go. The only hard to beat are the established ones. Lesser chance to survive the competition when there are fewer people to the community they've built.
The newer casinos have to give out as much as possible to be noticed. There is pressure to do a signature campaign for its normally what's done to get some trust and vouch from users. It's a struggle, other casinos really build a forum for their own just to keep their clients so they won't stray to some new ones.