I can't believe I have to repeat myself, I must be surrounded by morons.
They can (and will) re-use whatever they want in the testing versions of the game. They will obviously NOT put effort into graphics, sprites, and backgrounds of a game that was never intended to be seen by non-Konami employees.
The final version of the game will obviously NOT look as bad as the screen-shots that got leaked; but it's moronic people who think it will, that has caused Konami to be such wusses and not let any pics out to the public until the game is absolutely finished. That's why the guy who leaked the pics got fired from Konami, suspended from gamefaqs, and why Konami is taking legal action in trying to remove the pic from websites.