People are hoping mogu become playable but... What reason would they be Horde at all? They’re enemies of the Zandalari and Vol’jin worked his ass off in Pandaria to keep them from enslaving Pandaren idgi
The Rajani are a clean slate for the Mogu. Yes, the Mogu of old are less likely to submit themselves to either faction but the Rajani hold the possibility of joining the Horde or the Alliance or both as they're very willing to work together for the safety of Azeroth.
