Well basically, what will happen is that all the Marines will be summoned in Mariejois to watch Kaido die. But of course, somehow the pirates will figure out a way to gate crash (cuz pirates aint going down without fight). The Marines have obviously anticipated this, and a fight will issue. But alas, Kaido will still die and the end, and then a new Yonkou will replace him. And then the pirates will retaliate. Yep, this is basically my whole concept of the RP so far. xD