There will be many models tried and probably entirely new things that weren't possible before. The question is, how long until devs stop listening to people that hate humanity and start looking to those who are trying to make it better. It really gets old listening to devs complain about money and yet have no interest in bitcoin. 

Many will have to touch the stove and get screwed in order to learn.

kepford

bitcoin

The Lack of Compensation in Open Source Software is Unsustainable

elvismercury

I could see in the future something like: release a limited version of the app for free and then release an advanced version for paid subscription or one time payment.