Can't say for certain yet, but I'm starting to think we are in for another Heavenward. Since we've received no details on anything actually important regarding the expansion yet, I'm not getting my hopes up. At this point all we know is existing jobs will be adjusted, but not to what extent, and hey are looking at adding more challenging content. Nothing I've come across has touched on the mind numbing tombstone system for gear acquisition, or changes to gear progression pacing.
Basically the things we've heard nothing about are the factors which will determine if I even get Stormblood.