I think we will continue to innovate. When it comes to drones we have come a long way. I think we will start making more specialised drones. One which I would love is a fast low flying A-10 style drone. Not necessarily meant for CAS during sticky situations. But instead for huge assaults. Not only would they be crazy effective but imagine the psychological warfare.
If we could build a gun similar to the one in the A-10 and put it on a drone which would penetrate into enemy airspace imagine what could be done. A-10s are tough and can easily withstand small arms fire but you wouldn't want to fly into a competent enemy's airspace. But imagine dispensable drones doing the same thing. Just terrifying in my opinion.