Today’s Dragonflight pre-patch PTR build, Build 46047, is the first Dragonflight Release Candidate build!
This is not exactly surprising, as Blizzard announced earlier today that Shadowlands Season 4 is ending on October 25, which likely means the Dragonflight pre-patch is coming soon after. It is important to note that even though this is a Release Candidate build, it does not mean Blizzard is done with changes.