It's going to have to sell better than it has so far...but if it does, I'll definitely be pushing for more music, especially in pure electronic genres (rather than the electro-rock that's the most prevalent genre in this). The good news is that DLC is much easier to get approval for, since we can afford to pay a larger amount per track than with included stuff (assuming we charge a decent amount per song).
Hopefully PC version will rescue it, because I don't think it's sold even 5,000 copies yet (when it gets to the 50-75k range, then we have something to work with). We probably should have charged a lot more, since niche games need to make more per user to survive, but I was hoping that at $10 for 2 platforms, more people would impulse-buy.