Wowhead summed it up pretty nicely.
That's exactly what's happening here. Blizz is bringing back the Paladin-Shaman split. It's why I've become increasingly convinced that next expansion instead of 1 new class we'll get 2. They'll pull a ToR on us and give us the same numbers, but with two entirely different naming schemes and animation sets.So far it looks like Paladins are for the Alliance and Shaman are for the Horde...