The signs are bad. There is no official LineageOS 9-Pie template, extremely few unofficial LineageOS builds and a handful of unofficial LineageOS 17.1 builds.
ASOP 10 is no theme currently at all with /e/. Add to this the lack of staff and resources at /e/.
So I’ll have to settle for not /e/ ROMs and the /e/ BlissLauncher /e/ Wallpaper /e/ Browser /e/ Apps for the foreseeable future.