So a quick (and very rough) summary of that last spoiler would be:
- Onimaru (as the fox I guess), helps Luffy and Yamato reach the stage where Momo is.
- Big Mom intercepts, says "You" to Yamato as if she knows Yamato and talks to her/him as if she was their parent (implied).
- Kaido is disappointed in Yamato (I guess for being near Luffy?)
- Luffy is teasing a new form/haki/move?
- Orochi is in pain in a separate room (I guess the spoiler is implying he can separate his heads to make clones of himself)
- Raizo does something/sneaks into the castle (my japanese is shit, so I don't know what but i looks like someone spelled Raizo's name wrong)
- Kanjuro creates a clone (?) in front of Kiku (either Oden or Yasue?)
anyway, probably fake, who knows.