I'ts probably been stated by someone, but I'm all for RDM being a support DPS, but with the option to go melee or range. RDM would start melee and have some spells that act as aura's to buff allies, and then around 50 gain WM/GB equivilent where they go caster mode and switch to all spell damage.

Honestly we don't need another tank or healer in the next expansion.