At the very least I think they lose a large chunk of Xbox One population at least until the DLC comes out in December. I'm sure there are a lot of people like me who are on the fence with Destiny right now and getting bored but bought the digital edition and have already paid for the DLC. I'll basically be getting MCC for Halo 2 and the tons of pvp options the game will have, plus access to the Halo 5 beta. It will probably give me a break from Destiny but I'll also be checking out the DLC in December.