I dont know if i missed it but, Originally the two Burning crusade races were suppose to be Blood elf and pandaren. A few days before the announcement of the expansion at blizzcon, blizzard decided to scrap the idea because they thought it really didnt fit the concept of the burning crusade. Thats why in the announcement trailer, it only mentioned Blood elves and it took 6-7months after the announcement of TBC to announce draeneis. here is a picture of the old pandaren model compared to the one we have today. http://www.xavierleo.co.uk/pandas.jpg