This would be the way to do it. Seems that we get Baine, Jaina, and Thrall out of the Maw at least; so one would assume that Blizz isn’t so wasteful that they wont give them all at least some form of story arc. Clearly Jaina is going to go the Uther route at some point, due to her closeness to him. Thrall will get to interact with his Mom or Garrosh. So, go with Huln Highmountain for Baine.
Get Baine some long overdue Cairne/Huln injections; which culminates in him getting a new magical weapon (which warriors absolutely need to be relevant beyond dramatic sacrifices). To symbalize that long … long … overdue growth. Get Loa’Jin really cooking, and make that new Thrall statue a thematic reality. It could make a reasonable SLs Horde experience then.