Isn't Oda spilling the beans about a lot of stuff with this movie?
Post time skip Coby, Helmeppo and Aokiji, at the least.
But I admit the tie-in comic is something I'm eagerly awaiting. The tie-in to Strong World was a Fan Service feast (not that kind of fan service), and I loved it for it.
Ed.: That being said, 84 pages must be the whole "package". The SW chapter was of regular size, right?
So? It doesn't hurt anything. He isn't revealing major plot points, simply allowes for certain alrady known characters reappear first in he anime or films before they do in the manga. It's not like these characters will meet the Strawhats during the film. Atleast Coby and Helmeppo most crrtaimly won't.