Hi richardcgiroux,
IMHO, any initiative that encourages the creativity of fans is a good thing, especially when it can be done in compliance with copyright legislation. So go for it !
But some fan edits are made with more than just a single video file reassembled. You could find, in a fanedit, several audio files from several movies, even scenes from differents movies put together, sometimes new subtitles, scenes that are cropped or resized… all things that your tool will probably not allow to achieve.
So I guess that your tool could create a “simple” fanedit, or a base for further manual work, but not a complex fanedit. Anyway, I will follow your project with interest!