If you're a Drakengard fan interested in the completely hypothetical "Drakengard 4" reaching the PlayStation 4, you should know that Drakengard 3Director Yoko Taro shares the sentiment!
Unfortunately, wanting something doesn't generate mounds of cash, and Taro'sresponse to a fan on Twitter explained that while he hopes to make such a PS4 title, he "can't have enough money for development."
Initial calls for Taro to take the project to Kickstarter were reasonably met with Taro noting that Drakengard is a Square Enix IP. Perhaps Taro's funding budget will be re-evaluated if enough fan interest is generated when Drakengard 3spreads its wings over Western territories in 2014.