I'm now certain Kizaru is either falling to Luffy or he isn't falling this arc. Saturn may be the big bad looming figure but Kizaru is also treated differently than your average arc underling. There are more chances of Luffy beating both Saturn and Kizaru than Kizaru falling to someone else.
Maybe i will make bet thread on it.
Maybe i will make bet thread on it.
However, I'm wondering if Zoro won't deal with Kizaru like he dealt with Monet? I don't think that he will kill Kizaru.
It's difficult to tell what will happen precisely.