I hated the Matahachi thing, It’s like watching Forest Gump. I don’t like to know beforehand how things it’s going to end, and now we already know that Matahachi is gonna end up an old bum, but whatever, Takehiko maybe will shut my mouth in the next chapters (he was probably tired of a chronological development and decided to do an alternative one using flash-forward).
The only good thing is that we will see Musashi in action again (and yes, the kid is a Musashi with a lighter hair).