I have some ideas for a TPM fan edit, but it would change the story a bit, and I don’t know if it would work in a more traditional fanedit. I’ll try to sum up with the major changes.
Basically my idea would be to start the movie with Maul fighting other jedis, using a few images from the fan film Darth Maul: Apprentice. After that, that scene of Qui Gon Jinn in the jedi temple reporting to the council about the newly discovered sith lord would be shown. At this point, new lines would be added, with Qui Gon saying that he believed that the sith lord had gone to Naboo after the chosen one (these new lines would be created using this software: https://originaltrilogy.com/topic/Make-Qui-Gon-say-whatever-you-want-thanks-to-droids-Machine-Learning/id/87366). Qui Gon would comment that he found a vergence in the force, and after being asked by Mace Windu about such a vergence being located around a person, Qui Gon would confirm that it did, but that he only felt its presence for an instant during his meditations. Qui Gon believes that if he felt this vergence, the Sith might have felt it too. Qui Gon then says that the people of Naboo have ancient knowledge about the Force, and that they may have a clue as to the location of the Chosen One. Mace Windu would then order Qui Gon to go to Naboo to discover the identity of this dark warrior.
Then Qui Gon would go to Naboo to speak to the Gungans about the prophecy, but the Gungans would have no clue about the chosen one. Then, when Qui Gon was leaving the underwater city using the water transport, Maul would be shown in another place concentrating (using footage from the fan movie Darth Maul vs Jedi), hinting that he would be controling the underwater monster through the force (at a distance), making the creature attack the water transport. While Maul was doing this, he would whisper the phrase “fear leads to anger, anger leads to hate, and hate leads to power” in Qui Gon’s mind (this phrase was said in a Knights of Ren fan trailer, and for me the actor who says this phrase sounds a lot like Maul’s voice actor from Clone Wars. Also, putting this phrase would serve to differentiate well the philosophy of the Sith as opposed to that of the Jedi, said by Yoda later in the film). For this scene, I figured it would be cool to “cut” Qui Gon from the scene he meditates (at the end of the film) to put him meditating there, in the transport (I don’t know if this would be possible through editing). In this way, Qui Gon would use the force to control a bigger fish, which would attack the smaller fish controlled by Maul. After Qui Gon spoke the phrase about the “big fish”, Maul would be shown furious with Qui Gon’s victory.
During the pod race, in the moment that Anakin is thrown out of the road, I thought it would be cool to zoom his face and play the "force theme song”, as if Anakin himself was already using the force without knowing it, during that period of his life. After the movie shows Qui Gon’s reaction to Anakin using the force, it would then be shown Anakin’s vehicle returning to the track thanks to his force powers (my idea with this is to try to give a little more emotion to the race, in addition to showing that Anakin was not a complete ignorant in the force until then).
After Maul lost his duel to Qui Gon on Tatooine, I thought it would be cool to show Maul training (using scenes from the fan movie Darth Maul: Apprentice), very angry that he lost again to Qui Gon and wanting revenge (I thought it would be nice to add some Maul lines from Battlefront 2 here).
And that’s it.