What is "going to happen" is already happening - premium prices for IMAX, 3d, 21+ theaters, Dbox, etc. Theaters and multiplexes turning into social gathering sites with leisure areas and more and more food/drink choices including alcoholic bevs. And, theaters beginning to serve meals inside the actual theaters and outside. In other words: premium pricing for premium experiences and making the theaters more home like.
That was my first thought: theaters are moving to make more money with better services. I've got a brand new Alamo Draft House a ten minute walk from my house. It's a wild experience after a lifetime of normal theaters. Reserved seating, booked online. Food and drink ordered and served in the theater, during the movie!
I might expect these theaters to resist increased ticket prices. If they can shift revenue from low margin ticket sales to high margin food and alcohol, that seems more what they'd want.