However this volume does not "used" in any way the storyline. Nothing new; we only learn what happens to the characters, what they do after all the past events. It's interesting, but somewhat passive compared to the beginning or the reader was left hanging, hoping to understand who is really Jason Mc Fly foo bar, you know?
Also numerous drawings are sloppy, strange poses, it smells draft validated despite its flaws, I am frankly irritated (...) when it was delivered from as beautiful boards in the past. Still, one can understand the desire of the author to finally hang up the show after so many years.