Wow Account-Tauren Paladins and Priests
Here we have the most obvious departure from the traditions and culture of a race in wow account. Blood elves already had a somewhat convoluted path toward becoming paladins at first, but their story really played out throughout the unfolding of The Burning Crusade expansion, and eventually ended in a redemption that helped make wow account as paladins seem much more reasonable. Still, even if you discounted all that, you could argue that the blood elves had once worshiped the light, so it made sense that they could come to do so again.
But the idea of tauren becoming followers of the Light seems absurd at first glance. The good thing is that we"re pretty much certain that the wow account will not be Light-worshippers as such, not in the same way that humans and draenei are. Rather, somehow a new perspective on their ancestral connection to nature will open for them a new sort of path that just happens to bear an uncanny resemblance to the paladins of the Light over on the Alliance side, much like priests of different races have different beliefs, yet share similar powers of wow account.