It is difficult to predict too far into the future, given the industry is subject to changes in technology. It didn’t used to be that way. Books are now becoming commoditized products that will depend on technology on all aspects—to research, write, and edit books; to sell them; and to market, promote, and advertise them. So the book publishing industry will sink or sail based on the path technology leads it.
Writers today have many options and choices – self publish or traditional publish; e-book only or printed book only -- or both; what should be available for free and how much should you charge for your content? As authors, you then must decide how you will promote, market and advertise your book. What is your budget, in time and money? Who will you hire, to do what? What will you do on your own?
Many writers write about what they know, what they’re interested in, what they like. Whether it’s a book that is based on a personal or professional experience, a hobby, or a passion, writers will write books that are meaningful to them but then have to find an audience to enjoy the book as much as they enjoyed writing it.