At times it feels like my work will never be done. However I know every feature and bug can be described and eventually I will complete them all.
Looking forward, I'm thinking about releasing Power Render 7 with full source code for $100 like I am currently doing with Power Render 6. Imagine an almost Unreal 3 quality engine for ridiculously cheap. I will ask for royalties though. I'm considering making the code available even before the engine is done so people can influence my decisions on what needs to be completed.
It's very tough building an engine by yourself when there are so many components working together. With the code available other people could contribute. Good things happen with collaboration. I will never be a big company by keeping all my work to myself. I hope that releasing PR7 in this manner will bring about some kind of advancement in the field of computer graphics, and people will use it to make some great games. That is the ultimate goal. Hopefully people will benefit from my work and remember me.