There are new liquid piston engines which would weigh 3 pounds and provide 5 horse power (3300 watts per kilogram). This would enable lightweight hybrid power charging of high density batteries. The Liquid Piston engines are also quieter than other engines.
Another articles looks at new developments to augment human vision and soldier shooting accuracy.
At the 2015 Special Operations Forces Industry Conference, Revision Military displayed its prototype Kinetic Operations Suit on a full-sized mannequin Launched a year prior, the suit features a powered, lower-body exoskeleton to transfer the weight down to the waist belt and supports it with motorized actuators on each leg. The exoskeleton supports a body armor system capable of stopping rifle rounds that surrounds 60 percent of the operator, compared to 18 percent with current armor vests. To relieve weight, the leg actuators pick up each leg and moves it as the person moves, and takes the weight of the helmet, armor, and vest down through a rigid, articulated spine, transferring weight from weak areas of the neck and lower back. A small power pack powers the suit, and a cooling vest pumps water through three yards of tubing under the suit to maintain core temperature; the power pack has a cooling fan that be heard in close proximity, but it is thought that won't matter after breeching a door. The Kinetic Operations Suit has undergone live-fire testing and combat scenarios and successfully performed the same tasks as currently-outfitted operators in similar amounts of time
Revision makes the Batlskin helmets. The ultimate protection from trauma - blunt force, blast and ballistic. In a scalable, lightweight package that's fully modular and fully integrated. So you can tailor the system to the mission for peak performance."
In 2014,acquired Panacis, an Ottawa-based company focusing on Lithium ion rechargeable energy storage systems. Advanced, electronic battlefield equipment such as networked radios, night-vision systems, GPS, smart phones and laptops, while increasing situational awareness and capability within smaller units, comes with the challenge of sustaining power for these devices, ideally without the weight and complexity that numerous types of batteries present.
SOURCE- Revision military, wikipedia, youtube