Im pretty sure this chapter will be a Luffy chapter.
No explanation of D. clan
No explanation of Will of D.
Maybe D.'s common attitudes (Like they never give up or they have ambition about their goals) and while Yamato is explaining that Luffy'll reach top.
Even Oden said he learned all of them in Raftel but he doesn't write these information into his journal.
If he did, it wouldnt make any sense...I mean if that happen Yamato knows everything about world right now.
D. clan , Laugh Tale's treasure , Ancient Weapons , even Void Century...
It just makes Yamato dangerous person as a Robin and it doesnt make any sense.
Also , do you guys wanna hear Will of D. from Yamato?