Here is my attempt at the opening. I added the opening shot of Mustafar from Rogue One, as well as doing my best to color grade it to match The Rise of Skywalker. I even used music from the soundtrack that was part of the opening that didn’t make it in. Some VFX work can be done to remove Krennic’s shuttle.
https://vimeo.com/398946856
PASSWORD: fanedit
The color correction works, the music isn’t quite there. I’d recommend using the track “Journey to Exegol,” which is what plays when Kylo battles on Mustafar.