I have said in the past that I think the future of long range small arms is intelligent large caliber projectiles. Paint the 1000yd target with a laser, shoot a 20mm grenade. Puts more long range firepower into the hands of the average grunt. Basically, this would change warfare much the same way fire and forget missiles changed air combat.
Also I see more integration of autonomous weapons like UAVs. Soldiers will be able to call down fire from circling UAVs and get imagery from same.
Active denial systems are actually pretty easy to build - the components aren't restricted, the design for large W-band radars is 40+ years old, and the math for narrow beam antennas is 90 years old. Any civilian could build one.
Light gas guns - yes, I could see that being pretty neat.
Also I see more integration of autonomous weapons like UAVs. Soldiers will be able to call down fire from circling UAVs and get imagery from same.
Active denial systems are actually pretty easy to build - the components aren't restricted, the design for large W-band radars is 40+ years old, and the math for narrow beam antennas is 90 years old. Any civilian could build one.
Light gas guns - yes, I could see that being pretty neat.