If Fujitora weren't intending to betray the WG in the end, he would never have called himself "birds of a feather" to Sabo. This is Fujitora basically telling Sabo he is a secret Revolutionary lmfao.
Zoro will fight Kizaru, Sanji will fight Ryokugyu.
People are still deluding themselves into believing that Kizaru falls here but nah. He'll fight Zoro in the final Marine War. Fujitora will switch sides and be an explicit enemy of the Celestial Dragons and the Gorosei. He might fight in the final Marine War, but he'll be like a Hancock, betraying the Marines left and right and not seriously opposing the Straw Hats. Certainly not fighting a real 1v1 to the death with any of them lol. No idea why Fujitora would love Luffy as much as he does at the end of Dressrosa but then decide to fight against him seriously in the end. Lol