Korea is banning sale of virtual items, France and Germany are heating up against blizzard. What will be the outcome? As far as I understand, all these problems are because of the online only DRM and Auction house.
Under all this pressure from governments and stuff, not to mention hacking, duping and cheating proving the DRM already useless, you think they will consider an offline mode?
Don't start how it is very hard to implement offline mode. The thing is, it can be done no matter how hard it is.
TBH a 3 year old could tell that online only was going to bring troubles and was a Bad Idea.