Mr Morgan said a hui called by the king this week resolved "unanimously" for a working party to prepare an options paper for a new structure that would be finished by June.
A former Fonterra boss has further complicated the political situation.
Sir Henry van der Heyden, chairman of Tainui Group Holdings, called for the radical governance shake-up at that hui and Radio Waatea reported him calling for $70 million of new cash received in December by the tribe to go directly to TGH. It makes him the most outspoken TGH chairman.
Asked if the proposed working party would have to be voted on by Te Kauhanganui before it could go ahead with any work, Mr Morgan said the parliament would vote on the resolutions at a meeting on February 18.
He suggested there was good support from the tribe for the resolutions.
Te Kauhanganui
Tribal parliament: 66 marae each represented by 3 members.
Te Arataura: Ten elected members from Te Kauhanganui, one appointed by King Tuheitia.