The Bantha would be easy it's that pesky Saarlac that would be the issue

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Here's the story arc that I see happening:
- Republic being rebuilt
- Jedi Temple resurrected and introduction of new Jedi Masters/Padoine
- Young Padoine finds a book in the dark recesses of library, discussing how to "live forever" (tie into Palpatine telling Anakin about Darth Plaguis and his discovery)
- Palpatine begins to appear like Obi-Wan did for Luke
- Follow young Padoine's journey to the dark side while still training to be a Jedi
- During the trials Jedi Masters notice questionable tactics (those only used by the Sith)
- Movie climaxes when the Journey to the Dark Side is complete and the young padoine becomes the new Sith Lord
- Main Jedi Master character concludes the movie with the rule of two, a Master and an apprentice
If it is going to be a true Trilogy that follows basic Start Wars lore, we need to see how the Sith basically rise from the dead because without the Sith the Jedi have no meaning. Basically like without "The One" Mr. Smith has no use.