I'm very unenthusiastic about druids this expansion. Resto is the worst heal spec in the game, guardian is the one tank spec no one wants to have to heal and boomkins are mediocre. Feral does decent dps. So I guess I'd say swap four of them out for dks!

(I personally just levelled disc/shadow/guardian/elemental/affliction from 85-90 and I've decided to account transfer my level 90 monk so I can swap with the druid).