Would be cool to give the Falcon a slightly different look, like red stripes or something.
I really would have liked a lot more battle damage and general wear and tear. Maybe show that the top gunner turret was blown out and had to have metal plating covering it. Would have explained why Finn and Rey were acting like there was only one operational turret in TFA.
Yeah, I just feel like a paint job would be more feasible for a fan editor.