The book will present a relatively independent Marvel Universe, with little intersection with the DC Universe, set as the 'next-door neighbor' of the DC Comics Universe, while retaining the concept of the Multiverse.
The timeline will be basically similar to the Marvel Cinematic Universe but will be slightly adjusted, as it will incorporate all Marvel movies and TV content, adding some (majorly nerfed) comic superheroes, so the world's situation will be a bit different, but it can be fully compatible with the worldview of the Cinematic Universe.
The Marvel Cinematic Universe is independent of the Main Universe (Earth-616) and the Ultimate Universe (Earth-1610) in the Marvel Universe, numbered as Earth-199999. Ben thought for a moment, and decided to call his Marvel Universe Earth-40K... (haze)
By the way, here's an interesting tidbit: Marvel claims its Parallel Worlds encompass everything, including the worlds of anime and other literary works within its concept. Our real world is numbered earth-1218 in the Marvel Multiverse. There are two very similar false reality worlds, called Earth-TRN565 and Earth-38119.
Earth-TRN565 is a world with only Marvel and no DC...
Earth-38119 is a world where Superheroes actually exist, and Spider Hero and Stan Lee often go out to perform chivalrous deeds together...
After AC Company was acquired by Marvel in 1997, the world of Man in Black was also added to the Marvel Multiverse. Now that Marvel has been acquired by Disney, logically speaking, Mickey Mouse and Donald Duck should also have joined the Marvel Multiverse...
The author can't figure out who is stronger, Mickey Mouse or OAA, what do you think? (laughs)