While the U.S. military's fifth-generation F-35 Joint Strike Fighter jets are still rolling off the production line and deploying across the globe, work has already begun on a futuristic 6th-generation fighter -- an aircraft that may have increased stealth, drone companions, boosted artificial intelligence and even the ability to heal itself when damaged. Richard Aboulafia from the Teal Group breaks down what we can expect from a 6th-gen fighter jet.