Would have been sick to have Palpatine hiding in the sith shrine deep below the temple instead of Exogol, right under the noses of the New Republic and The First Order. Imagine the surprise of the destroyers emerging from deep below the surface of the industrial regions of the capital. A true power play.
Judging from this concept art this may have been the case in an early draft.
https://mobile.twitter.com/CultureCrave/status/1218324295765512192/photo/1Okay, now I’m convinced the final sequence should be on Coruscant. My problem with it in DotF was that Rey and Kylo were halfway across the Galaxy from the big battle, but utilizing the Sith shrine beneath the Jedi Temple would be a brilliant way to remedy that. The Sith Citadel could be left as is, but the other 2/3 of the battle would require some FX work. Basically, you’d need to swap out the background. Finn’s mounted assault could be on the street, with defected stormtroopers, while Poe leads the battle in the skies. My one issue is I don’t see the fleet being hidden below Coruscant. Anyway, luckily, the ground isn’t visible in most shots, so it could just be said to be happening in the upper atmosphere. The space horses are visibly in the sky, however. Maybe they could stay there instead of on the streets?
In the 2017 script, Coruscant was used in the place of Exogol. So Palpatine could very well have been deep below the temple.
In the the Art of book it says that Kylo Ren took an elavator down to the deepest levels of the temple…
https://i.redd.it/qly76fvkab451.jpg
