“fully autonomous”??
fully?
You mean it decides when and who to attack all by itself? It could just decide one night to go and bomb Scotland, just ‘cuz?
Seriously, no. All that happens with these things is that the "pilot" is in some safe concrete bunker miles from the action. By autonomous they mean the thing pretty much flies itself, allowing the ground "pilot" to concentrate solely on tactical control.
These systems are nowhere near as good as manned aircraft. As far as I know, none of them have a dogfight capability at the moment but that is certainly being developed. These things are getting better all the time. Odds are they will be the future.