* dynamic HSM https://github.com/intel/ehsm

* machine learning in tandem with GPUs https://azure.microsoft.com/en-us/blog/azure-confidential-co...

* autonomous key management https://docs.oasis.dev/general/oasis-network/overview#privac...

* signal contact discovery https://signal.org/blog/private-contact-discovery/

These will also work with next-gen enclave tech (mainly in the direction of total VM encryption), but those (AMD SEV, Intel TDX) aren’t as secure as SGX yet, so SGX has continued utility to applications beyond DRM.