It was rumored that Edwards was essentially removed with Gilroy being over the final cut along with directing the reshoots. What is known is how extensive the reshoots were, because you can see from the trailers a TON of footage that didn’t make the movie. They completely rewrote and reshot the battle of Scariff scenes on land - originally as seen in the trailer Jen and Andor got the Death Star plans form one building and then to run across the beach to get to a second building to transmit the plans.