I agree entirely, to know all there is to know about a game takes the excitement out of it when you play it, just like going to watch a movie, even knowing what happens in the end, so you sit there like an idiot till the end or watch the same movie twice, the thrill of the unexpected is taken away.
I'd like to know more about DMC4 than we already know, but only such things as characters, an initial synopsis but nothin more, the excitement comes from playing the game and unravelling the mysterious locked within each stage, each cutscene and each boss fight and character dialogue/interaction.