Honestly what I found the most amusing is that Killingham seemed hilariously desperate to make sure that Sanji remembers him, by not only bragging to Sanji but even getting a sore winner(actually loser) kick off of him.
It's interesting that the World Nobles are afraid of rain. So there's Nika, the Sun God, and now Zaza, the Rain God. It seems that the Celestial Dragon's may have feared anything capable of towering above them, if it weren't captured and/or in chains.
I honestly wouldn't be surprised if D. or the Great Kingdom may have existed in a region high above the twenty kingdoms, although considering Vegapunk's words about how advanced the Great Kingdom was, I wouldn't be surprised if the kingdom itself was ontop of a massive ship.
Now part of me somewhat expects that the Celestial Dragons may some day intend to travel through space in order to "rise above the sun".
Also, does that mean there's also a devil fruit for Zaza, like there is for Nika? Also considering how Imu is addressing Loki, does that mean that Nidhoggr and Ragnir may also represent godly entities? It's really hard to say, since these are mythical zoan fruits, and we've seen a number of them already.
Overall, I enjoyed this chapter.