The blatant connection to Superman Red/Blue that they have, and strongly insinuating that they're both part of a whole.
Hell, they're literally shown as Red/Blue in the solicits for April: (please log in to view the image)
With this solicit:
Not to mention that the whole deal about Rebirth is that ALL of the heroes are the same as they were Pre-Flashpoint, they just don't remember it. Somehow, the Superman are two different characters, which gets me to the above point.
Then you have the solicit of the aftermath of the crossover:
Then you also account for the changed costume..
I'm 95% sure they're merging, and I really hope that's the case.
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Oh wow. I haven't seen that cover or those solicits yet. I can definitely see what you are saying. Its kind of neat seeing the two Supermen drawn together. I hope they don't do away with Lois. When Wally returned, I was wondering how the two Supermen would play out.
Thanks for posting that.
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The merged Superman should be the Authentic Superman-- the Pre-Crisis Superman with full memories of his entire history from the Golden Age, SILVER Age, Post Crisis, Post Zero Hour, Post Birthright, Post IC, And Nu52 integrated. Anything else is another continuity error AGAIN.
OWAW/Apokolips Now re-established precedent what was shown through implication in te Krypton Man/Red Glass/Blaze-Satannus War/DoS waaay back in 1991/92 -- a fully unleashed Superman is multiple times more powerful than his standard Elite top tier Class 100 levels at the time, a peer to Darkseid in combat(H/P Supes for example, was nowhere near Darkseid in power), can 1-2 shot kill/destroy elite top tiers/trans(above top tier on average) tier Imperiex Probes when fully cutting loose, and is absolutely on a par with Skyfather class beings. We also saw this when he saw him match Kal-L(1/2 of Silver Age Superman) and both of them directly overpower SBP(who has Silver age levels)
I'm thinking the original Sand Superman storyline explains why SBP's still above everything -- also he knows his power levels are limited by his mind since he's an expert on Superman's continuity and therefore has no limits at peak confidence)