Now I know at first it sounds ludicrous, probably at 2nd and 3rd too but hear me out. Vegapunk built the Pacifista using Kizaru's laser somehow and Franky incorporated that into his Radical Beam. Plus he has the plans from Vegapunk for the Pacifista most likely plus any of his other technologies and discoveries from that lab. Plus we have the introduction of that new wine stell that sounds like the metal equivalent of the Adam Tree wood. So Franky possibly has a super metal body, Kizaru's laser tech and possible information about it from Vegapunks research into how to weaponize it. Franky may just be the Ace up the sleeve against Kizaru. Now idk if he could win and definitely not yet but I think he may be at a natural advantage against Kizaru.