system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Trek/Star Wars] Coruscant along with it's inhabitants suddenly appear in place of the destroyed planet Vulcan. What happens next?

Edit: Let's go with 25 BBY and everything up to and including it's moons come through.
gpt
A diplomatic crisis. Trillions of beings from possibly millions of planets with a lot of tech that surpasses their immediate neighbors by hundreds or thousands of years (in most cases)-not to mention it's the political capital of an entire galaxy! Some might accept their fate and remain in the federation, others might venture out into the galaxy to seek their fortunes in the new frontier, and still others would play galactic politics between the alpha and beta quadrant powers. 

One thing is clear though: with hyperdrive, the Borg come into play ALOT sooner. Oh, and the Soongs are going to have a field day.