Please no. Absolutely terrible idea. This is just going to make new people feel even more behind, however "rare" you think they're going to be, day 1 you're probably looking at having 20 of them, and that's if it came out tomorrow. Give people time to prepare for this and you're going to have a hell of a lot more than that. Meanwhile it increases the difficulty of balancing items.
As to the OP, I agree. Less on the point of level 31 being boring and more about c-rpg as a whole. Not going to get into details on this here, don't want to take over this thread but simply adding populated(Meaning don't give people an incentive to play OTHER modes by not giving xp/gold to these servers) FFA or TDM(Unlike Battle, this actually has respawns) servers would renew interest in c-rpg for quite a few people that I know.
Also, Murmillus_Prime, why are you -1 bombing everyone?