F-16 UCAV sounds like a pretty good idea.I doubt though that an F-15 Eagle would be used in that way.Though it's aged the F-15 still has a powerful punch and taking the pilot out is too risky.

These concepts for converting manned airframes into UCAVs have been around since at least 1997. However, I think some of the potential advantages you describe are a bit optimistic. The airframes were originally designed for +9g, with some safety margin. Simply removing a pilot doesn't mean that the aircraft could pull more g's without extensive structural strengthening. I'm also skeptical about using unmanned aircraft for air-to-air combat. Stinger has been tested on the Predator for self-defense, but I doubt we'll see UAVs flying air defense missions anytime soon--certainly not without a man-in-the-loop. The primary advantage of UCAVs is the ability to strike well-defended ground targets without risking a pilot, but air-to-air combat requires a level of situational awareness that will be very difficult for a pilot in a ground control station to achieve.