Yeah.
I want him back. Seriously, if we can have Superdad back, then I don't see why we can't have Superman back as well.
There are still unmapped worlds in the Multiverse I believe... and then there's the hint of an infinitude of worlds that exist outside the orrery as well, as implicated in Multiversity.
I know what you're gonna' say tho'... "But L.R...! Geoff Johns killed him off but good! Bludgeoned him to death as a comment on the facetiousness and callousness of online fans!"
It doesn't matter... He's Superman - we've seen versions of him beating death and returning before - he can do it again. It's superhero comics - they always trump the odds eventually, and Superman is the embodiment of that theme, of the very idea.
If I were to do it... I'd use Hypertime, AND the Flashpoint-event - in that moment, when time and space became maleable again, Superman Prime (of DC One Million) reached back in time, or rather, an ASPECT of Superman Prime did - the one that is composed of the Golden Age Superman - Kal-L - and changed it - making his past, original aspect, aware of the change in the Multiverse coming, and letting him split himself and Lois off, creating Hypertime-ghosts, that then preceded to exit into normal space, and the Infinite Crisis!
And subsequently dying...
But two aspects lived on, in Limbo - Superman Kal-L Clark Kent and Lois Lane-Kent.
And now... the time has come, to shatter the walls between the continuums again, to rebuild his entire world, to reforge the Justice Society of America, for the Champion of the Oppressed to rise again! To save the very soul of superhero fandom - perhaps even one, single tarnished soul - a young boy that embodies those problems...?
THIS, LOOKS LIKE A JOB FOR... SUPERMAN!