We've talked about this in passing the last few weeks, but let's just make it clear and official: we're working with Sparkbox on a redesign of CodePen itself.
We're right in the middle of the process right now, so there isn't a whole lot to see, except for the process itself, which we're documenting on a dedicated site. Hopefully that should answer the big questions. You know, like why do a redesign at all? What are the goals? Who will it help?
Stay tuned for more as we move forward with the process.