Great chapter can't wait for the next one, hopefully WB and even Shanks gets an appearance.
I was hoping for some badass Rayleigh talk, since he was introduced in such a badass manner in 500, but it didn't happen. Garp was the one who hyped him up, calling him "The Dark King". It must be related to his powers, or even a DF, however Yami Yami no mi was already eaten by BB, I hope we get to see what that title is all about in the coming chapters.
Garp seems to have hinted he will visit sabaody to handle Rayleigh. So he is headed to grove1 as well. We probably will get to see another Luffy Garp grandpa grandson lovin, and lots of fist of love.
Also I think Luffy will change his mind about not saving Ace once he finds out he was sentenced to a public execution.