Thanks! And yeah, getting down to the nitty gritty of the dialogue will be the most challenging part, since there isn’t a line from Poe that goes like, “Lando, go rendezvous with the Republic!” I think you could simply omit lines that contradict the main idea, then insert offscreen dialogue that supports it. So when we see the massive fleet, we could get a line from a off-screen character that says something like, “It’s the Republic!”

Also, since we have never seen the Republic fleet, we really don’t know what it might look like. Instead of having a Grand Army like the Galactic Republic, the defense fleets of dozens of member worlds might join together when facing a larger threat, so a “New Republic Fleet” might look a bit more scrappy than the very uniform Empire.