Yes, I can see some partnership with an existing distro (something like « merge our drivers asap and you get preinstalled ») but IMO, the company behind Framework should focus on its strengths on the hardware design. I think they are on a hard market and it would make me sad to throw money into making another distribution.

Furthermore, I think that, atm, their target market may be 95% of power users who will flash a usb stick with their favorite OS even before receiving the computer.