I would like him to come back, but I don't think that he will. I think he'll stay dead for a minimum of two years, and if he's not back after five years people will stop caring that he's gone. So I suspect he will stay gone, forever, except for one or two flashbacks like that time a few years ago they did a Superman comic that took place in the 70s.
I'll also be defiantly collecting all the post-Flashpoint Superman books. It might not be extreme defiance; I'm planning on getting the post-Rebirth Superman books despite my feelings of betrayal toward DC. But I don't know, maybe if the DC You trades sell well it'll make them realize they jumped about twenty guns with pushing Rebirth.