Things like those NVGs which have data streamed to them are already being produced, SF guys will be getting them soon if not already. Also, like mentioned in that article, cameras mounted onto weapons could be used by soldiers to look around corners and they see through their goggles.
Now eventually, helmets are probably going to be equipped with flip-down screens for data like this so I'm wondering, what are we likely to expect in Arma 3?
Personally I can see these going into the future being commonplace, so perhaps the Dev's can see a use for them in-game?
CornerShot - Weapon mounted cameras which screen stuff back to a hand-held device or helmet mounted screen.
Compact Radio Integration - Compact but powerful radios. Perhaps integration for commanders so on a Tactical Command screen they could see who was speaking and where they are? Triangulation could perhaps provide locations of transmitting units?
Aussie Diggers getting silk clothing to stop shrapnel / Blast Shorts - In the future imagine this being expanded with better materials and covering more parts of the body not being protected by armour? I'm not saying it would be bullet proof, but it's a step in the right direction and potentially could be used to reduce impact?
Land Warrior (USA) - If you check the sources, lots of the original equipment was dumped by soldiers because of weight. Now that's going to significantly reduce within the coming years so when Arma 3 is released, perhaps a system close to the original if not better would be standardised? Things like the marking of enemy positions I remember reading was something soldiers kept, so the people who needed to know like Machine gunners, knew where enemy had been spotted.
Which brings me onto the GPS/Map. Why not have that in some integrated system? Especially the mini-version that we RCTRL-M at the moment? Seeing markings on there would be a huge benefit (Don't believe you can on mini-map at the moment, need to go to main map to see them). That way a commander could tell a squad to move to a certain location and one of the squad could have his mini map open showing him the marker. Could be used to identify enemy firing positions etc also.
I don't know how much of this would be possible to implement into the game or will already exist but since this is a thread designed for the Devs to look at, I figured I'd go a little crazy with the ideas :)