blizzard, imo can't realistically keep allied races grind gated to a previous expac going into SL and beyond. blizzard also needs to look at BOA heirloom gear is gated to WOD. legion, and BFA.
blizzard announced flying in WOD and Legion would no longer require pathfinding grinds. imo, BFA will have flying more then likely ungated also. blizzard just does not want to announce it now, because it would piss players off still grinding for it and those who just finished it.
my questions to the testers
-is the NPC on Beta that allows you to pick a expac to level in?
-can you switch, like say you picked to level MOP, can you switch to another expac?
-is XP off NPC still in game?