Just like the music industry, I think more writers are going to become acclimated to the book-signing aspect of the industry in order to support their themselves financially. Subscription based models and piracy that originated from the disruptive nature of new technology sounds like it would discencetivize writers from creating new works, but I think if you model the economics of future distributions, it will eventually favor the writers that create quality work. The best example I can think of is the existing state of stand-up comedy. Louis CK, Aziz Ansari, Joey Diaz can release a $5 special DRM free with low capital expenditures, and still make a significant payout. This model cuts out most of the pre-existing middlemen, and all that's left is artist and the audience.