We were also told Kaido just had 3 disasters.
So they are already accounted for.
Well we have seen that while Jack is tough, then he isnt likely able to measure up to the really powerful people at the utter peak of the pyramid.

And.. we then also got a chance to look in on what Blackbeard is up to.
He is a horrible monster, but im still glad he kept his attitude of life being a grand show.
Though less certain about how useful Shinyus new fruit is, for the type of opponents he is likely to face.