My RaF timed out about 3 days after Wotlk hit which was just about perfect for me.

I got:

5x shammies to 61 on pvp server
1 Pally and 4 Priests to 55 on pvp
5x mages to 35 on pvp (arcane blast x5 = fun anti-melee)

1 Warrior and 4 Priests to 61 on pve
4x mages to 59 and 1 to 54 on pve

gifted another pally to 59 and topped off a bunch of lagging alts on my main into the 50+ area, but i lost a bunch of levels due to laziness and poor planning (moved the shammy team from pve to pvp at level 45 and lost 22x5 levels, i wish i'd known that would happen ahead of time)

I got the wrath bug almost immediately and started a DK on my main and popped him over with 4 of my mage team when they were about 55 to his 58 and leveled that bunch until he matched the 4 priests in the pve group with my old warrior, then swapped him over again.

Those guys are doing very well now, up to 66 over the holiday and they are actually gaining gold instead of sucking my main dry. My next decision comes at 68-70, when i debate keeping the DK in the group or subbing in my lvl 70 pally main (who has been sitting ignored and unleveled at the first camp in BT) to do the grind to 80.

I'm thinking i'll probably keep with the DK, it's kinda the way I ended up having the pally as main before - started him with BC and never leveled my old priest main much above 60.