I think it's time to resurrect this thread. This is due in part to potency of geraldthesloth's ideas regarding the nature of Bruce Wayne.
One thing for sure is that Bruce Wayne is still Bruce Wayne. He isn't Orion disguising himself as Bruce Wayne disguising himself as Batman; my understanding of reincarnation is that the reincarnated person will not behave like his past life but will exhibit some wisdom and maturity in their youth as if that person already experienced it before. That's why precocious children are called "old souls".
After reading Return of Bruce Wayne I'm beginning to be more convinced by it:
Orion connection: (Take a look at the constellation on Batman's left.) This page condenses all of Grant's recurring symbols he's used throughout his run and may even confirm the theories talked about on this thread.
Darkseid reincarnation in Doctor Hurt:
Ideas are like viruses, they need hosts to survive and replicate. Viral videos need people to share the video for it to become potent enough. The New Gods are "self-aware" ideas, meaning they act on their own accord and spread themselves around.
In addition, the reincarnation theme has been quite apparent in Final Crisis and in Grant's Batman run. Darkseid's Servants were reincarnated to Earth to spread his dark idea, the Monitor Nix Uotan was reincarnated as a human being as The Bleed faded away.
I appreciate what Grant has done for the Batman mythos: Superficially, for making Batman as the greatest hero in all of DC mythology for beating a God and more subtly elevating him to Godhood with the Orion connection. I don't understand why people dislike his attempt of giving Batman a literary quality in addition to his pop culture leanings or even accuse of him of self-indulgence, expanding a character is far better than keeping him in the confines of the same rogues and the same dark city and the same paranoia.