The Farstrider and Highborne thread actually ended up suggesting something like this as well, just calling it ‘tab’ rather than template.
I’d love to see a template for both these, then, if Moria has the time to spare.
Farstrider template for Blood Elves and Highborne template for Night Elves.
As a matter of facts they also suggested High Elves as a template for the Void Elves, but that was already made. 