They basically said that since Galaxy’s Edge did not increase the number of guests as they expected in the US parks, and because of the high maintenance cost of the RotR ride, a trusted source told them that they are canceling this project.
Disney have been thinking for a while now about a Lion King land with a ride similar to splash mountain, since the Lion King festival in DLP is so popular, and they are obliged to build something in this location (because of contracts with the French government)