What about the fabled "Lost Issue Number 35" from the Marvel Run?
I heard rumors that issue 35 was actually completed, but was never published due to poor sales. It would be awesome to see this in the omnibus.
It makes sense, as I have all of the Marvel run and it definitely did not seem like a final issue. It wasn't advertised anywhere on the cover if I remember correctly and the story just ended like many of the previous issues with no "riding off into the sunset" kind of tidying up for loose ends. It definitely read like there would be more issues.