In all fairness, the series has been limping into the barn since before the start of the final stage. We all know how it's going to end. You will get an epic final battle with Musubi and Karasuba, Musubi will win, she will challenge Miya for the God's Seat and become Queen Sekirei. From there Minato and his whole harem will live happily together in the Maison Izumo like nothing ever happened. Uzume will probably be revived, and everyone will comically chase after Minato after Kazehana tries to cash in on her desire to jump him after the tournament. Miya will giggle politely at the mayhem, but might let Musubi step with her bear instead of calling her demon mask as she is no longer Queen.
This was all pretty much written the second Matsu managed to save Seo and the S&M twins from real elimination. Really, it was settled when Yukari and Shiina managed to escape the third stage and resolved that Minato was taking care of Kuu. Minato will get his wish and stay with his harem as a happy family. Yukari will continue to be a happy little perv with Shiina now that she's over her brother complex. Higa will hopefully die in a fire or worse. The only fate up in the air now is Mikogami's and I give him 50-50 on surviving this stage. If he does he'll have a happier and more functional family with Mutsu, Akitsu, and his other Sekirei. If not I figure Mutsu goes out in a blaze of glory defending/avenging him and Akitsu will somehow end up joining with Minato and the others.
Minaka I think will end up getting killed doing something oddly noble, just like he put himself on the island to save Minato. His personality leading up to Takehito's death stinks of a final redemption for him. Especially when we all assumed until that point that Minaka had Takehito assasinated for opposing him. Minaka is getting humanized to better face his end like a man.
