Symantec Technical Support is presently unable to provide any information about a development timeline for compatiblity between CentOS8 / RHEL8 and SEP 14.x.
Specfically, the issue is that the Auto-Protect module fails to compile correctly during installation. Manually compiling the module also fails when following the instructions in Tech Support Article TECH132773 "Manually compile Auto-Protect kernel modules for Endpoint Protection for Linux".
So, please let this "idea" serve as a request to provide a reliable workaround or, even better, implement a fix in a future release.