COPR build option / chroots for EPEL-8 builds

Dear all, I hope that I am not misplaced here. I wonder and I am also curious about the build options in COPR respectively chroots targeting EPEL-8 builds. CentOS8 will be EOL at the end of the year. What will be provided in COPR as build chroot for EPEL/COPR builds? What is actually used in koji for real EPEL packages? Thanks!

EPEL is built against RHEL. I expect that to continue.

What about COPR chroots (EPEL8) will they change to RHEL?

I think the plan is to have both RHEL and CentOS stream build targets.

Thanks for this input.