Though I certainly wouldn't advise Konami to rush the game at the expense of the programming, I also wouldn't necessarily say longer development time automatically equals a better game.
Look at Resident Evil 5. They took four years to deliver that game, and while it is a good, enjoyable game, it's also short and relatively forgettable, and feels, despite its extended development time, to have been rushed and underthought.
And then there's Chinese Democracy. . .longer just doesn't mean better.
I'd like to hear more about the game, they don't have to announce a release date yet or anything, but some early screenshots, some character art, even some concept renderings would help stoke the fanbase.