Confirmed working Arrandale graphics in macOS 10.13 High Sierra (a little artifacts here and there, but still fluid, with 10.12 kexts), I actually didn't test the betas, but installed today the App Store version. Only thing different from installing Sierra is that the installer will kernel panic if you try to remove AppleIntelHDGraphicsFB.kext with single-user mode, so, boot verbose in order to watch boot sequence flows correctly and don't get scared by the heavy artifacts the original framebuffer makes, let it install (once you see the artifacts it will go through the update, you don't need to input anything anyway.) and it will reboot automatically. After reboot, I recommend booting single-user in order to remove the offending kexts, and rebuild kernel cache. It will reboot once again. After the kernel cache is rebuilt and that last reboot, boot normally, install 10.12 kexts from this thread, reboot and Done!! (Works if you're jumping from 10.11.X or 10.12.X, with the Mac App Store full version).
P.D.: Remember to update all your apps to the latest version hehe