https://wccftech.com/cod-black-ops-4-zombies-reboot/

Call of Duty: Black Ops 4 is a departure for the series in a number of ways – it scraps the traditional single-player campaign, adds the Blackout battle royale mode, and totally reboots Treyach’s increasingly convoluted Zombies storyline. Of course, the ridiculously complex lore is one of the things players like best about Zombies mode, so why reboot it now? In a new interview with Game Informer, Zombies director Jason Blundell explained why now is the right time for a change…

“The ‘Aether’ story we’ve been telling that for the past 10 years, that’s incredibly complicated, incredibly involved. Our fanbase loved that about it, but there’s a part of our community that came in a little later on. It’s almost unfair to them to have to jump into that 10-year storyline and find their footing. We felt now was the perfect time to start a new story.