Predicting the future is hard and often just look. But you might want to learn an new paradigm. E.g. functional programming. If you haven't done, it will be eye opening. Or a different environment, esp. if you have only programmed in a MS environment look at non-MS languages and IDEs. People who can work in both are in the biggest demand. Or network databses vs relational databases (though you can build a network schema in a RDB, since a network is a relation), etc.
Look for differences and analogies and analogies between analogies.