For years, every so often, a company offers a system that combines a fixed camera and a PTZ. The fixed camera covers a large area (like a parking lot) and the PTZ is slaved to it. Using analytics to monitor the fixed camera's FoV, objects are dedicated (cars, people, etc.) and the PTZ is then directed to the locations of those objects, potentially tracking them as the move across the area (e.g., parking lot).
Despite a number of companies offering this, it has never really seemed to take off.
There's a small company, Viewgle, who is now actively marketing this. Here's their demo video:
It includes a comparison of SD, MP and their system: