Lets stick to facts shall we and skip the fan talk.
Draenei and Blood elves will NOT get new models at launch of WOD. That was said loud and clear by devs. ONLY the old orginal vanilla races are being worked on right now and note this... There is NOTHING saying that the expansion will launch with ANY new models... cause Blizzard has stated already multiple times that they are not ready.
"The team hasn't decided how new character models will be released yet. It could have all of the completed race at launch, or they could be added every patch."
NO WORK HAS YET BEEN DONE ON THE TWO TBC ADDED RACES. That is a fact and was claimed at Blizzcon 2013.
Here is a DIRECT quote from MMO-Champion
Worgen and Goblin won't be getting new models right away. The team will take a look at those models after all of the other ones are done.
http://www.mmo-champion.com/content/...ld-of-Warcraft line 17.