I haven't heard anything announced for Disney yet, but this year Universal broke the norm and announced their own ticket price increases first. Speculation is that Disney price increases will go into effect any day now.
This article reviews everything, but I've pulled out a few key excerpts below...
http://www.themeparktourist.com/news/20160211/31470/x-things-you-need-know-about-universal-orlando-resort-s-unprecedented-price