What would you like to see?
Personally I'd rather have subraces, because of:
-no need to balance new class, so blizz could focus more on other things to do,
-no need to add new lore for the new race, so blizz could focus more on the ones we have already,
-subraces won't require as much job as other things(just like bronze/red skin for orcs, earthen skin for dwarves) but would give us nice new customization, maybe along with new hairs/faces/details etc,