Which would honestly be hilarious because
A. The horde already have their own specially skinned NE (nightborne) because the developers wanted to make the NE non exclusive to the Alliance.
B. Undead can already be hunters (or dark rangers if you want to call it that).
If they get dark elves I am fine, as long as we get light touched undead and it ruins the Forsaken lore as badly as the Nightborne ruined NE lore (with all the ridiculous retcons to give it to Horde as a race).
Additional threads on 8.3 and night elves: