I've got a month's time on a play card I've never used, but I'm kind of saving it for when there's something I really want to see. Pandaria isn't it. Also, I'd have to pay for the expansion anyway.
I would very much like to explore a big "Chinese"-themed area, akin to Jade Empire - not really actually
Chinese, but inspired by the mythology, and I'd very much enjoy playing a flailing-fist-punching Monk character, but I'm very doubtful the expansion would deliver anything like what I'm imagining.
The "Kung-Fu Panda" angle kind of fits, despite my initial reservations of it being entirely derogatory - since the art style of WoW has always been cartoony and the humour's alway been there - they've never been shy about nicking other people's ideas. Lore purists may squirm a little, but Blizzard do have form with other fourth wall-breaking content, like the Plants v Zombies mission and a few other nods to popular culture. (Area 52, Haris Pilton,
etc) With this mantra, I've shrugged off my indignation about this expansion's unoriginality, but still cannot shake the suspicion that the devs are totally taking the piss.
Cataclysm, I was super-excited about, yet only bothered to play for a month, after exploring all the stuff that'd changed in the existing world and putting two or three levels into my 80's, I was stuck by the "is this
it?" feeling, and shied away from actively completing either of the two new quest chains. Without many 5punkers actively playing, there wasn't really much impetus to push on. Quite the contrast with Lich King and Burning Crusade, where we had whole new continents to explore together and a real reason (DKs) to get those old characters who'd been languishing in the 40's for years levelled up.
I suspect, if in playing this new expansion, that any enthuasism I might have for Pandas, Monks and all the Chinese-themed stuff will last approximately as long as that of the new Goblin and Worgen races did in the previous expansion - enormous fun for ten levels or so, then rather than them being woven into the existing fabric of the game, becoming just like any other race but with their start towns turned into historical relics instead of new, exciting places other races can visit. Lich King did it better.