Microsoft want recurring revenue, i.e. they want to sell GamePass, not consoles. I expect timed exclusives for the biggest franchises, which is fine. I wouldn't even be surprised to see timed exclusives for GamePass vs buying the game outright. I would be very surprised if new instalments of Doom, Fallout and Elder Scrolls never come to PS... these users aren't coming to GamePass anyway, so they may as well get a one off piece of the £50 from them.