The official site states that the patch will add a "new continue system" for when you run out of time and a new control system. You'll also have "lots more time to spare" as you make use of the "smoother multi-play camera." This patch is due to arrive on the 19th of December in Japan and Europe, with an American release "coming soon."
We're all for improving accessibility, but we get the feeling that these new features might make things a little too easy. The smoother multiplayer camera is definitely a welcome improvement, though. Hopefully now Q-Games has gone back and "fixed" both of their most recent games we'll start hearing more about new PixelJunk title soon. That'd be nice.
[Thanks betahoven]