http://elitistjerks.com/f15/t71334-b...3/#post1359824

Quote Originally Posted by Alerian

Originally Posted by vallkyr
With faction change now available, wonder if you could level a horde character to 80 now and change it to a worgen on the first day of the expansion.

A dev mentioned today (my stream went out for a bit so this was via Tankspot's feed) that they'll be doing same-faction race changes after they make sure faction changes are working.