It's a little simplified for now, the republic core worlds are allied together in a federation "The Republic", otherwise the only addition is that the sith and Jedi hate each other. Diplomacy tends to work out like it does in the real universe, but with plenty of room for quite different playthroughs each time. One game the sith might ally with the Mandalorians and the Echani, while another they might end up allying the Hutts or end up alone.

Diplomatic and Galactic events that shift and force wars are upcoming.

Thanks for the response! Very happy to hear that the sith and jedi hate each other as that one was my biggest concern that would break my immersion! Im gonna go ahead and get it now thank you!

Also that "Diplomatic and Galactic events that shift and force wars" sounds awesome cant wait!