Where to now?

So after a few hours of thinking and looking around. Ive gone back to my ball game. Not the game itself but just the general principles of it. I have removed the line element to it and made the balls appear from the mouse positions (also giving them a changeX value, allowing them sideways movement), adding a new level of interactivity. From here I will develop sound and more elements into the original idea to make the whole thing more interesting.