Nefarious, I wondered the same thing - It's been super PR for Sony and the film, if all of a sudden Sony pulls a reversal, and says "roll it", I bet a lot of people will go see it just to see what the fuss is all about. I had no, like zero, plans on seeing it, even on DVD/Download, but you can bet your bottom dollar that if the above happened, I'd go see it in the theater now, again, just to see what the hubbub was over.
There's a lot of speculation and stuff out there that NK has been "linked" to the hacking (FBI's exact language), but not directly responsible for it. From what I've read the malware used specifically targeted areas of Sony's network that showed it had to have had prior knowledge from the inside - of course, this could just be another level of hacking, who knows what kind of military capability countries have with computers and networks. For a country with such a handful of net connections even allowed, it does surprise me that NK has such an effective capability to get complete control of such a large and powerful company's network.
I guess the FBI/Sony will release more info as time goes by, whoever did it, it's been very interesting for sure. I wonder what some of the faces of those mentioned in emails in not so flattering light looked like when the heard the news.