Look, I didn't design the game, the alliance or the horde, they did, and Elves don't fit on the horde, never did, they've changed the horde just to fit the elves in, it doesn't work, no body likes it but horde elf fans, and it's disproportionate. . furthermore it's un-necessary.
While they can't go back, horde elves playable are here to stay, they don't need to be a big thing on the horde, nor should they be.. the balance can be fixed with the elven development focused entirely on the alliance, with the horde having access tot he high elves and night elves as playable on the blood elves and Nightborne, small niche remnant groups, nothing more.
Sooner or later, if they haven't realised it or seen it, blizzard will. The moment they hire or promote a competent person to creative lead , and actually look at their own product properly, they'll see all of this.
They'll see how very much alliance themed elves are
- How and why the decision was taken for blood elves to cross over to boost the numbers
- How un-necessary elven glorification and promotion on the horde is at this point when it's the alliance way down on numbers
- How beneficial to fixing both horde identity and image crises and improving the alliance it will be.
The horde theme and make up never needed alliance elves, - only the numbers did, and blood elves were a fast and easy solution, but were not hte only ones.
they have never fit the horde theme, or meshed with the horde philosophy either, to have changed the horde to accomodate them has diminished the horde itself and severely wounded or rather crippled the alliance too.
They are a problem that is so easy to fix by shifting the elven focus back and totally to the alliance. While they can't remove blood elves and nightborne as playable, they don't need to expand them and certianly don't need them hugging the kingdom of the high elves or the Kaldorei civilization - the most loved paspects of the alliance, when the horde does not need them and should have been expanding the Trolls and orcs a lot more instead.
This is what they would return to, and the horde willb e better for it, so would the alliance.
there is nothing that says the elves have to be the only attractive or desired thing in warcraft, and they aren't. They are to a lot of alliance fans and alliance minded people on the horde - many fans would be delighted with more amazing Zandslari troll stuff, and new races or incarnations of orcs and goblins that also bring great things to the table in a horde way.
no need to keep porting alliance favourites over. time to return them to the alliance. For the alliance.