RogueLeader, YES. There’s been a lot of chat about other elements of the sequel trilogy but TROS absolutely drops Finn’s plot off a cliff, and it needs something like this to make it relevant throughout the full trilogy. Overdubbing the stormtroopers is a great idea, and a solution for TROS also needs to be found. I wish there were some way we could have elements of the First Order fleet turn against the Final Order fleet, but that’s likely beyond our scope.
Maybe some Stardestroyers could stop firing during the finale. If there is a way to keep Hux until the end, we could reuse his small hologram from the opening of TLJ asking why they aren’t fighting.