Otto will both prove that he is the Superior Spider-Man and that he's Spidey's greatest villain for sure
If Slott goes full predictable we'll have Norman doing bullshit plans, Otto saving the day and everyone saying how awesome he is, everyone looking awesome (But not as awesome as Otto) except Spidey, some character he created being killed and MJ being a bitch :P
"I should describe my known nature as tripartite, my interests consisting of three parallel and disassociated groups; a) love of the strange and the fantastic, b) love of abstract truth and scientific logic, c) love of the ancient and the permanent. Sundry combinations of these strains will probably account for my...odd tastes, and eccentricities."
It will end with the true PEter coming back and explaining that Manchild Peter was an actor all along.