in wotlk atm it looks like shadowpriests role from manabattery has gone to be raidhealer. Slap few sp:s and you can drop healer or 2. Propably we will not be topping meters but misery is always misery so every raid will be running with 1 minium.
ps: to the guy who said VE causes high threat, it sure does but our threat gen stays same it is now when tanks threat get scaled up by quite a lot