DiDio has stated since the announcement of the relaunch that several events still happened, Death of Superman is still one of them, and I believe in issue one of "Superman" it was referenced. Superman's had a partial reboot...not everything was gutted. Just most things.
This was from last October...
Final Crisis never happened apparently that means Bruce Wayne and company have a "lost year" of sorts in the New 52. This should also mean that The Return of Bruce Wayne and most of the first year of Batman and Robin didn't happen either since they were the direct result of the events of Final Crisis. Although since RIP happened I guess that cancels the other out. See what I mean!?? The article has a good term for this "logic bomb" when trying to contemplate the new timeline. There is no possible way it can be reconciled lol.