We moved to Shanghai and were disappointed in the summer when we found out there were no Annual Passes. Well, that is somewhat no longer an issue. https://www.shanghaidisneyresort.com/en/ticket/
They now have seasonal passes. Reserve and then buy yours by Nov. 12. It lasts until March 31, 2017. It is a little convoluted as to how they are purchased, but that seems to be par for the course with things here in China when comparing them to how Disney operates in the States.
See you on Tron!