Plenty of us, but, that is besides the point because there is no real reason to expect the next expansion by the end of 2014. Yeah sure they fucked up in wrath and Cata really bad with their timing, but, they have also shown in Mists that they can crank out content really fast. We already have the same amount of patches as Cataclysm. But, even then it's not just that we are going to have more patches, but, have more of literally everything with the exception of 5 mans. More raid bosses, more loot, more group content, more mounts, more item models, more quests, more achievements, new features, etc. etc.
Considering the next patch is going to the PTR soon and will probably be out within 2-3 months, having the expansion nearly 12 to 13 months after that would be going against literally every thing they have been doing in MoP and would actually be slower than previous expansions which doesn't even make sense.
On the topic of actual models though, it's very true they might take a while to make. They outright said the Pandaren models took months to make. Shouldn't be surprising to anyone either considering unlike NPC models player models have more animations and they have to make sure literally every armor model in the game fits and doesn't bug out. That's a huge undertaking for a game as old as WoW, and, they are making at a minimum 16 of these fuckers. I pity their artists to be honest.
