I remember an early suggestion for ROTJ:R being that to sell the size of the new Death Star by not having it be the first image you see, but rather something built up to, by first showing Vader’s Star Destroyer which then gets a shadow over it, cutting to the reveal of the Death Star dwarfing the ship in scope.

This was posted long before Star Wars went to Disney, so Rogue One hadn’t done a similar idea yet. The idea could still be used here, and using Vader’s ship could make it unique.