I like this a lot and it’s similar to how I imagined it. I will say that if the prequels did one thing right, it was the concept of Palpatine manipulating both sides and deceiving everyone. I really don’t like the execution in Attack of the Clones and how dumb they made the Jedi to make it happen, but overall it’s a good idea. I would like it if he’s still manipulating Atha Prime and the Clone Masters with a sort of Sidious persona in the same way he did with the Separatists in canon.

So in yours, I think it’s a little bit too obvious to have Palpatine openly belong to an Imperial Party and Antilles Organa to know exactly what he’s doing. I think it works better if he’s a safe, unassuming, middle-of-the-road politician who lets others do everything for him. If I remember right, that was actually how the Emperor was described in the novelization of the original movie, until he actually appeared in ESB and became a main character.