Really, did anybody know this film was coming out before this attack? Did anybody have any expectations that this film was going to be anything more than mediocre?
There hasn't been any hard evidence to say North Korea were involved except the FBI saying they were, there's more evidence to say it was someone else (prime suspects being China or Russia). With the way things are going in Russia with sanctions and the Rouble crashing and them almost blaming the West, I would say that's the place to start looking.
But really, are we missing out not seeing the film? I suspect not.