The next big thing in tech? I would bet on extending what people can do with their smartphones and additionally (though not unrelated):
I4.0 (Industry4.0 - the current trend of automation and data exchange in manufacturing technologies): with a lot more tracking of goods and automation (in China, whole factories are run by robots, while the employees were fired, e.g. here)
E2.0 (Enterprise2.0 - the use of emergent social software platforms within companies, or between companies and their partners or customers): which creates a startup atmosphere and adds things like crowd-funding and internal opensource development to big companies
IoT (Internet of Things): for example Nest
VR/AR (Virtual/Augmented Reality): for example OSVR and Hololense