I lapsed on the new 52 a while back so I admit I'm a little lost, but from reading DC Rebirth #1,Wally West gave me the impression that Pre-Flashpoint people and New 52 people aren't actually different people, just missing 10 years worth of memories. So what does that mean for Pre-Flashpoint Superman? Is he the same person that disintegrated in Superman #52, just older and somehow still alive even though his younger self bit the dust?
The million dollar question. It's an active plot thread.