Guys, the editor's comment on the chapter already revealed what's in the chap.
He said "Going to the next island in high hopes" or something like that. Considering these rumours about Sabo and this semi-spoiler about the title, we can expect a chapter which is longer than usual, maybe with more than 20 pages.
So, what I can deduce so far:
- Long chapter
- They're leaving Wano
- Lore bombs about Pluton and the 3rd Lode Poneglyph
- News about Sabo and the Revos
- My personal speculation: Shanks will help Luffy to get out of Wano avoiding Aramaki and the marines.
Probably 10/10 chapter.