2) Internet of Things might finally realise it's full potential.
3) Open Data from Governments enabling companies and individuals to leverage value and deliver new services.
4) Surveillance, tracking, and behavioural prediction. Your phone, your car, your wallet, and your face all broadcast information. It just needs picking up, putting into a data lake and analysing. Expect better traffic management, intelligent congestion charging, and targeted arrests. All fed by advancements in IoT.