I feel the same as you! I also like the end of xpacs, gives me time for other stuff to do. Right now im leveling a Orc Warlock(currently lvl 71). I have played wow since launch, but never had a horde char at max level. About damn time right?
Besides that I go for achivments on my main char(Human paladin). Working slowly towards Loremaster. Will also level up some proffesions on several chars and have them ready for MoP