Yeah, I feel like Kanki is falling on this battle. We still don't know what was his weakness Riboku found out. He is dying and leaving an empty spot for the six great general, so that one or two of the new generation can climbe in

I feel kanki will die here in Gian arc and that will have a two spot for great general but I think they didn't appoint a 5 and 6 yet so I just feel that ouhon, mounten, and shin will be appointed when Riboku fall thats what I thought they have a plenty enemies in other empires like Gohomei in Wei