I was inclined to disagree with Black Maria vs Sanji at first because the match-up doesn't make sense unless Sanji goes okama and because I'm kinda hoping for Robin vs Maria.
But chapter 997 made me think Zoro & Marco vs King & Queen is more likely now, and with Jinbei climbing up with Luffy, that means Jinbei vs Jack is also likely.
Assuming Robin vs Maria happens, this does make me wonder who Sanji will fight in Onigashima. Drake, Apoo, and Hawkins are no longer likely, so that leaves Who's Who, which isn't a bad match-up, tbh.
But chapter 997 made me think Zoro & Marco vs King & Queen is more likely now, and with Jinbei climbing up with Luffy, that means Jinbei vs Jack is also likely.
Assuming Robin vs Maria happens, this does make me wonder who Sanji will fight in Onigashima. Drake, Apoo, and Hawkins are no longer likely, so that leaves Who's Who, which isn't a bad match-up, tbh.