Hi SSWR, in your last clip, when the ship is arriving on Naboo rather than a “here’s our stop” type of comment, could you have a background voice announcing their arrival - it just seemed very sudden in the clip. I also liked the humour with Anakin, and I think it worked as humour, but it did feel slightly less Star Warsy (a technical term) to me. On the whole though I think your ideas for creating new lines which also fit the lip movements, timing, and feel of the scene, are unrivaled across this site so I’m looking forward to seeing more of your ideas.

Regarding your mentions of out of the box ideas and reusing footage, here are a few ideas i have for my ideal edit (which will probably never happen - also some of these may have come from things I’ve read here through the years so not trying to claim exclusive originality on these).

Make Dooku a rogue jedi with a white lightsaber (it signifies his leaving the jedi order and lack of affiliation to any side), and increase his lines as much as humanly possible. Christopher Lee has done so much voice work you can probably create any line if you spend long enough looking for the right sources (book readings like Sherlock Holmes for example). Also if you have him as a hooded hologram in scenes or his face covered by a mask, that gives you even more freedom).
I fully support the prior idea of cutting Yoda as much as possible (ideally completely). I would love to see a seen where Obi Wan talks to Anakin about one of the strongest of the ancient Jedi Masters, Vader, who Anakin wants to become as powerful as, and eventually takes the name Darth Vader as a corruption of this. It would make the choice of new name less random, and also if Vader were shown as a statue somewhere to be a large human male, then come ESB, having Yoda being the most powerful, and non human, and tiny, really adds to this twist.
Whilst I agree that flashbacks aren’t Star Warsy, force visions are ok, and there can be some cross over there. My suggestions would be the scene where Anakin rescues his mum. If you reverse parts of the footage and only show slowed down brief snippets then you could make it seem that Anakin’s vision is his mum being tied up rather than untied. If you change the colouring and add a very light sound of Vader’s breathing then it would make for good foreshadowing. Then the scene where Anakin leaves the Tusken tent and slashes at the Tusken, that could have the lightsaber changed to red and the face obscured. The rest of the costume is dark and flowy enough that if his face could be replaced with a Darth Vader style helmet it would suggest he is dreaming about a bad guy who isn’t him.
Another vocal recasting I would love but I imagine would be way too much work would be replacing all of Anakin’s lines with lines from Orson Welles. Whilst he may not necessarily sound like JEJ he has a paced and distinct way of speaking which I just think would transition perfectly.
As for the structure of the film, I would open with the shots of Anakin and Padme landing on Geonosis to rescue Obi Wan, but change it to Padme and Obi Wan rescuing Anakin. This would open with an action sequence, and establish these three as the main characters, with Anakin and Padme already being in a relationship. Show it from the get go and it makes it easier for the viewer to believe it as they aren’t having to believe it building up.

Anyway those are just some random ideas for you, but as I said I’ve really enjoyed reading your ideas so far so keep up the good work.