Detail
Skyborne lore: wiki describes them as high elves descended from Highborne exiles fleeing Prince Tortheldrin; Blizzard's Found Photos recap says 'rebels who fled Eldre'Thalas after the War of the Ancients'. Timeline detail differs. Sources: https://warcraft.wiki.gg/wiki/Skyborne, https://news.blizzard.com/en-us/article/24304071/world-of-warcraft-forever-found-photos-panel-recap