I think that if we are to use shots of Coruscant from the prequels they’d need to get a First Order overhaul, flags, Ties, destroyers in the sky, colour correction, perhaps even air pollution.
We could draw inspiration from something like this:
I was wondering if we could create a moving version of this piece of concept art from Duel of the fates, https://starwarz.org/wp-content/uploads/2020/01/duel-of-the-fates-concept-art-8.jpg.
It could be used as an establishing shot for the board room scene in Tros, and with some vfx we could have explosions added to it at the climax of the film.
Seems like a great idea on paper (one of the things I liked the most about the scrapped Episode IX was revisiting Coruscant).
An easier change could be this: remember that establishing shot of Kylo and the Knights of Ren approaching the Steadfast in their respective ships? Maybe the background could be edited, so the three vessels are in the night atmosphere of Coruscant instead of outer space. The skyline of Coruscant could also be seen behind the windows of the Star Destroyer when Kylo addresses the officers.
And then, at the end of the movie, we see one or several FO Star Destroyers being destroyed over Coruscant city.
That way, without even changing existing dialogue, it’s implied the First Order has followed the footsteps of the Old Empire reclaiming Coruscant as the galactic capital. And this, along with the hypothetical Ajan Kloss/Naboo merging, serves as a final acknowledging of the prequel era.