Mmmh. I have my doubts. This is a short interlude arc between big arcs (just like Zou), and indeed we are already at the fights. So I doubt Kizaru will be beaten here like Jack or whatever. More likely, since Oda is the king of unconcluded fights and fake tension, there will be a fight with an unclear result (see almost every big fight in tue series). At best, for Luffy and co, Kizaru will play the role of Aramaki and despite not being officially defeated he will become another laughing stock, but I doubt it since Kizaru is and "old character" at this point.