A long-range directional base station that automatically tracks the drone (and can switch to omni at short range) would be cool.
Antenna tracking ground stations and diversity receivers have been around since the early fpv days, although tracking isn't very mainstream because its challenging to set it all up. I'd still prefer my dual antenna / diversity RX setup since it provides some redundancy.
I thought the tracking could be mostly automated between GPS (outdoor) and direction finding + dBm (indoor/canyon), but I guess not.