Its kind of sad that many people REALLY do not like Thrall or want him in the story anymore, each time I mention how I want him back or want him as Warchief people shoot me down. I definitely understand where they're coming still sad considering Thrall was once really beloved.
Personally i've never really been on Garrosh's side in any of the involvement between him and Thrall so there's that. Horde just needs Thrall and those who value honor more than ever right now. And considering he's a big player in BfA one can hope for a return of Thrall.