Integrate Azure AD PIM with on-premises AD
Azure AD PIM is a cool feature, and easy to use. The on-premises MIMPAM solution is the exact opposite experience. It requires a lot of infrastructure to be in place, and different skillsets are needed to make it secure. It's simply too expensive and complex for a lot of organizations to use.
Integrating AAD PIM with on-premises AD would solve these issues. A cloud based solution, paid by usage (license per user).