Speculations Will someone else than Yamato get his/her hands on Oden's journal ?

#1
Thanks to the last chapter we know that Oden left behind him a journal which ended in Yamato's hands and contributed to her becoming such a hardcore fan of the legendary samurai. This journal has obviously escaped Yamato's father, Orochi and the rest of the Beast Pirates' notice with Kaido having failed to realize that the informations on the poneglyphs and Laugh Tale that he seeks may have closer to his reach than he thought.

But do you think that this journal will stay in Yamato's hands and possibly fall only in the Kozuki family or the Straw Hats' hands in the future ?

Could Kaido and/or another member of the Beast eventually finally discover that Yamato had Oden's journal with her during all this time ?
Could someone who isn't a Straw Hat, a Beast Pirate or of the Kozuki family ends up discovering and reading the journal too ?

Does this journal contains really precious informations on the Road Poneglyphs, Laugh Tale and/or the Void Century ?
 
#2
It will be a kind of plot device at a certain point. Not for nothing Kaido a few chapters ago asked Kankuro if he had any news about Oden voyage with Roger and this journal would exactly be what Kaido needs aka at a certain point Kaido will come to know of the existence of this journal and do whatever he can to obtain it and ultimately fail / find nothing relevant / find something / the journal gets destroyed before anybody can guve a look at it. Anyway by the end of the arc there could be some new revelation through the journal (or Yamato who could have memorized it) but I don't think Luffy will want to read it since he didn't want to hear the infos Ray offered them during the Sabaody arc, or at elast not willingly. So at best, imo, we will have some revelation from it but not disclouse it entirely (cause it should have the whole voyage to Raftel and come back).
 
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