It's been a busy week for industry speculation after Geoff Keighley started posting about a mysterious, glowing monolith in the middle of the California desert, which was later moved into Los Angeles. Now, it appears the monolith's mystery might have just been solved through a trademark filing. Rumors that the monolith was erected to tease new Diablo 4 content, Elder Scrolls 6, God of War, or Lords of the Fallen 2 were all shot down by people in the know.