One thing about the Old Republic era I’d like for them to “fix” is to create a substantial gap in technology. They don’t have to ruin the feel of SW, but the ships could be smaller and hyperspace much slower. Space, in general, would feel more dangerous. Although the Jedi and Sith would be greater in number, there would be less republic and empire. If that makes sense.
Couldn’t’ve said it better myself. It needs to look ancient.