Direct mount. They needed to do that since it's more popular now.

They are new and have a more aero cover than before.

Sort of? Most brands seem to have skipped straight from proprietary-rim or standard-rim straight to disc. The Ceepo pictured and the Canyon SpeedMax have direct mount. I can't think of anyone else off the top of my head. I'm sure there are.

In any case the existing Omega X has a direct mount adapter. So maybe the new one will be natively direct mount with a standard mount adapter?