All of the previous extras from all of the previous home video releases of these films(including all box-set-exclusive extras) should be included.

All trailers, TV spots, & radio spots, as well as all home video ads, that pertain to these films should be included.

The definitive Blu-ray release of "Superman"[1978] should include a definitive cut of the film that's basically the 2001 extended cut of the film but with all of the missing scenes from the Salkind International Cut of the film added in.

The definitive Blu-ray release of "Superman 2" should include the fanmade Restored International Cut of the film and the Richard Donner Cut of the film, and all of the previous extras that pertain to the theatrical cut & Richard Donner Cut versions of the film.

The definitive Blu-ray release of "Superman 3" should include the extended cut of the film.

The definitive Blu-ray release of "Supergirl"[1984] should include the original 150-minute-long cut of the film.

The definitive Blu-ray release of "Superman 4: The Quest For Peace" should include a completed version of the original unreleased cut of the film.

All 4 of the Batman films should have extended cuts made for them.