If you haven't read Superman Unchained #3 - stop now and leave or continue if you don't care about the story anyway.
So Wraith seems perfectly intelligent and amiable - even friendly towards Superman. It's confirmed his DNA is "similar" to Superman's, suggesting he's kryptonian - however he LOOKS significantly different. The final panel however has a reveal....
He has grown large bony style protrusions over his body as he gets ready to fight alongside Superman, and makes a comment that it's a shame he will have to kill him.
The main Superman title has dropped hints that Superman did in fact die in the new 52 universe (something I thought had been retconned in New 52), which suggests they're going to re-do Doomsday, or at least a Doomsday story line. THIS can't be that though as the time-line is wrong. Unchained is happening in a similar time to Superman as Lex has gotten out of prison. Is it possible he's essentially another, more advanced Doomsday? He looked very similar to how they're drawing him now when he landed - so it's not that he's evolved to look like that after 75 years under our Sun.
I'm just thinking if Doomsday's origin is similar to the original idea, will Wraith be another evolution of Doomsday?
Am I making a random connection that doesn't exist?