Personally, I'd love multiscreen dungeons - or at least dungeons larger than ADOM's 80x25. Double that size (80x50) would easily fit on one screen nowadays.
While multiscreen dungeons would get annoying if they were too common, imagine a new version of Infinite dungeon where first floor would be, say, 10x10, second floor 11x11, third floor 12x12... etc, without limit.