Originally Posted by
Murlocos
Demon Hunters only having two specs makes them feel like the odd man out now and a relic of Legion's focus on slimming down the classes. Hero talents feels like it may be locking that in; if they added a third spec, it'd also need a new hero talent tree for it and for one of the other specs to swap places with one of their hero trees so every spec has access to two. The workload will be much higher than it is now.
In a similar vein, I think Evokers aren't being released to any other races for a long time, if ever, with the hero trees all placing so much focus on the dracthyr elements and their racials.