Unfortunately the air to air tests are not going to take place using the X-47, they are going to use another jet (think a lear jet), which will be flown using the X-47 software to meet the air to air testing requirement.
Also, when I say flown with keyboard and mouse, it is not manually being controlled by either device. You can only select from a few procedures, routes, and landing sites, then it is all done autonomously by the mission/flight computer. I was surprised to not see a stick or throttle in the UCAS trailer, but that is how it is done.