As of now, Industry 4.0 market got the highest attention among the global player across the world. And internationally it has been recognized as a powerful transformation in the industrial world of automation. The technological sectors for Germany.
As per a survey by VDE, in 2016, below shows the top 10 technological sectors with high business potential,

In my opinion, electromobility and smart traffic or smart cars are the future and the new world of transportation.
Smart grids also got more attention from the markets with the internet of things and Robotics being used as helping support to modernized communication and also the delivery purpose. More emphasis is on using smart transportation or traveling.
Source:- Statista.