I do not think a new player roulette will help new players. It will further segregate people from doing the already present low level roulette's and such. The DR is intended to help all players and new ones included, the bonus is only intended to be an incentive to help them. If you add new player versions of DR on top of what already exists then it would take even longer for new players to get help and may even be (potentially) detrimental to new players.