Futei has been reduced to a joke the last arcs he was in. SSJ took his spot. But I don't see him dying, exactly because he has become a joke. He went from giving trouble to Shin to getting dealt with by almost dying Ouhon to getting matched and almost killed by Rin Gyoku.
The way I see it, the battlefield will be divided like it was for Shukai plains. Shin and Ouhon will be with Ousen most likely, SSJ will have his rematch vs Yo Tan Wan (might one of the key of the battle, the winner might come help Ousen or RBK)
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Ouhon will face Bananji, and Shin will have to deal with SBS, Kyou Kai will defeat Ji Aga or another general from Seika. I expect heavy losses from both sides, other than fodders I mean
Anyway, I haven't been excited for a Kingdom's arc like that for a while now. I was a bit bored of the kanki's arc even though I like the character and how he ended up. Also was a bit bored of RBK but this time SBS is here, the hype is back.