Hey, remember how all those games made by Suda51, has certain elements shared across there games, perhaps they do the same with a successor to No more heroes.
Just like they did with Killer 7, they made Killer is dead in the same style as Killer 7.
@Darkslay Companies like that dont usually make sequels, instead create stuff from new ideas, otherwise we could have had like part 3 and or 4 already. :P
Which is a shame, the backstory on those games are still largely a mystery.