It's pretty much a proposal for an edit (an ambitious edit with lots of almost impossible face mapping but who knows what might be possible in a few years time?).
Much of the story and the footage remains as in the theatrical versions but re-shuffled.
See when I originally thought of this I realised that the hardest thing to do with the story was leave Anakin in. Thats why I suggested changing it to Obi Wan and Anakin.
However, if it was left as Qui Gon and Anakin, and Dooku was the bad guy in the background I think the story would work well without needing too much ambitious editing at all (like refilming, though some voices might need to be rerecorded).
The biggest problem is it would be a Prequel story without Anakin Skywalker at all and that does seem a little wrong somehow.