You think they deserve screen time. I have never felt that.
I think they've already had more than enough screen time, and any they had has just fed the insatiable delusions of those who seek to
make them playable despite the fact they already are.
The only screen time High Elves deserve is to die on the battlefield of Darkshore and permanently end the hopes of pro High Elf fans.
Anything else is a waste of time that could be devoted to an actual Alliance race.
If Blizzard has no intentions of killing them off, then we can pray they stay in Dalaran and be forgotten by the story.