Board Thread:Questions and Answers/@comment-1894786-20160301034508/@comment-4651179-20160301041443

Writer Cullen Bunn mentioned in an interview (here) that "What happens in this book becomes canon for the Marvel Universe."

I find that this brings up one major problem. While some of the events of Deadpool's Secret Secret Wars happen alongside the original event, there are others that happen in the place of certain moments from the original series. For example, while Secret Wars has Captain America confronting Doctor Doom in the final battle, Deadpool's Secret Secret Wars has Captain America and Deadpool confronting Doctor Doom.

This means that if we accept the events from Deadpool's Secret Secret Wars as canon, the original series from 1984 will not be canon.