I think the electronics and electronics fabrication industry is ripe for major disruption in 2019. The end of copper clad fiberglass boards are in sight, and that will change the way we think about electronics in fabrication.

Electronics is also kind of exciting right now in particular. The open hardware community while in it's infancy still, is growing rapidly. Notably, the ESP32 platform has allowed home brew IoT technology to grow very rapidly as it brings a processor and Wi-fi to a chip for less than $5.