I mean I would not mind if later in WoW Tyrande and Malfurion made a last stand somewhere as long as we had build up on other characters to take over like Shandris and Jarod.
- - - Updated - - -
Also why does the green flight need Ysera? Can new characters never get some emancipation? Merithra had a story arc in BfA and she was clearly trying to take her mother's place