An infrared heads up display in the face piece. There are no reasons that every firefighter shouldn’t have a camera, and no reason you should have to carry the thing.
Apparatus designs in which hose and equipment can be reached from the ground. This isn’t so much reengineering as it is going retro. When I started, you could reach the pre-connects in the rear from the ground, and standing on the tailboard, you could see the driver. There is no reason we need ladders on apparatus to reach our own equipment. You shouldn’t have to practically set up scaffolding to reload the hose bed.
C’mon folks; we had guys walking around on the moon in 1969; there is no reason we can’t have these simple items on a cost effective, and importantly, firefighter proof configuration.