Or will it be running some kind of fork?
my GUESS is no.
I think the answer is clearly yes for OrcaSlicer and no for Vanilla.
No for the vanilla Klipper because of the eddy current sensor, or for some other reason(s)?
Until now, Sovol has been using its own Klipper fork.
There is no reason for it to change its mind.
But maybe I’m wrong.
Proprietary version of EddyNG and OTA updates
Has no one figured out how to use the MCU half of a Sovol mainboard with an external host computer.
All the problems “mainlining” a Sovol printer are in the MKS/Rockchip/Armbian fiasco. A Pi running Rasbian or a PC running Debian server would allow you to leave the bootloader and Armbian OS as is for a fallback.
^^^^ This.
I don’t know how to do it, but I’d be all in favor of it.
Other than the Pi, I long ago realized that ARM single board computers just aren’t all that well supported in Linux without a lot of additional development effort by somebody–which all too often turns out to be nobody. Much better off running the linux part on a x86 architecture if you possibly can, because then it all “just works”.