Thanks for everyones contribution ... it's certainly interesting to speculate on what might constitute a future viable Air Combat Drone capability. But as mentioned by Safetypee, the human brain remains the most agile and flexible CPU ever developed ... and will remain so for a very long time to come ... albeit that it is contained within a "package" that is now nearing the upper end of safe G tolerance. With the human body probably not safely withstanding much above -3/+9G this may be one of the primary drivers in progressing AC Drone solutions?
The Drone "Wingman" approach would bring a whole set of new challenges I guess ... not least ... how would you launch in a QRA scenario ... let alone how do you overcome command and control latency issues as some have highlighted above.
Definitely a "watch this space topic" I think ...