There is a lot of promising possibillities. Some promisses will probably be fulfilled, othwers not. As Some of the developments expected in the past have for some time been part of our daily lives, where on the other hand it is not hard to find things that was more or less expected that is still very far out in the imagined future.The point being that Go was considered the next AI challenge, an order of magnitude more difficult than chess. And the program has now improved by playing itself, and human players have said it has used strategies they have never seen. In other words, in a few months, the program has surpassed the sum total of human knowledge of the game.
The technology will have other applications.