Well, I really not looking foward the end of the season. Patch x.0.1 are mostly ridiculously broken and you get nothing to do but random BG. I would be semi ok if skirmishes come with it.
I'd say they're really fun. It's that "limbo" period between expansions that proves just how imbalanced the game can really get, haha. I still remember Holy Paladin's during the Cataclysm pre-patch; you could literally walk through Orgrimmar with most Horde attacking you and still walk out alive because Holy Power was bugged or something.