This is a great time to be a data scientist. This field is evolving at fast pace, every year there are new things to learn and newer problems to solve.
Even couple of years ago, this would not have been possible : http://www.whichfaceisreal.com/index.php (A model that generates images that look like a real person).
Some of the things that are cutting edge are :
- Platforms that make Machine Learning easier and more accessible (Such as https://colab.research.google.com/ and https://eng.uber.com/introducing-ludwig/)
- Models that collaborate to solve difficult problem. For example StarCraft game where player has limited information and has to plan for long term. https://deepmind.com/blog/alphastar-mastering-real-time-strategy-game-starcraft-ii/
- Models that learn automatically from large amount of data http://www.whichfaceisreal.com/index.php , https://deepmind.com/blog/wavenet-generative-model-raw-audio/