And there you have it folks, straight from the horse's mouth. Although no one here is surprised.
Now the big issue here is that the Creation Engine has some major issues like physics being tied to the framerate, inability to use a Field of View (although this is mostly something that Bethesda has overlooked) and the visuals that the engine is currently capable of producing are outdated.
Take for example Fallout 76. From what we’ve seen so far, this new Fallout is a really disappointing game – visuals-wise – for a 2018 release. Moreover, we don’t know whether the engine can take advantage of multi-core CPUs, whether there is still the limitation of 4GB of RAM, and whether there are plans to support DX12 or Vulkan.
Creation Engine, which is basically an evolution of the Gamebryo Engine, is dated. We know it, you know it, modders know it, Bethesda knows it. Unfortunately, though, this engine will power the games that the team will be developing, and that’s a bummer!
Thanks Reddit
https://www.dsogaming.com/news/bethesda-will-use-an-upgraded-version-of-the-creation-engine-for-the-elder-scrolls-6-and-starfield/