If you want a legitimate way you can have your "high elves" the Alliance could scoop up the wretched, there is a fuck ton more of them than high elves and their story is more than "hey im a blood elf but blue, hope you don't want any lore because the Blood elves have it all, bonus points because you will never see your homeland again"And that's why the High Elves are one of the alliance Races with the most Screentime ingame?
I think it would be a good Subrace for the Alliance that would make some RPers happy, just like Undead High Elves for those who want to play a Dark Ranger, Mag'har Orcs, Taunka or Kargaths Haircut, so I can finally start a Shaman.