It's already back. Y'all just 5 years behind the time so here is how it plays out:

People pine for the days of having the physical feel of the books and a lot of people who never read before ebooks start to have an almost vinyl like appreciation for physical books. There is also a trend of people wanting permanent entertainment as more and more it starts to seem like electronics have been overcomplicated and too frequenlty fail for extended periods of time of updates or resets that the guranteed fact the book is physically to pick up and read instantly becomes enticing.

Librarys see a pretty big boon to patrons but they over do it and try too hard to capitalize on it and second hand book stores end up taking off in a big way again.