Actually Blizzard explained in a interview that the new customization like Wildhammer and High elf skins is meant to reflect that race so that we can Roleplay as them. Obviously they won’t create new starting zones for them
As they explained it will take them time and resources. So instead, they added customization to existing races that look similar to them (Example: bronzebeard dwarves and Void elves) so these options are, in fact, High elven options to reflect that race.
Read the interview here: