What i would like to see is John Cena ebracing the hate & ending the careers 1 by 1 of all the Attitude Era Superstars starting from the Rock at Wrestlemania 28 then followed up by the grand daddy of them all the Undertaker.
This will give him the mega heat & heel turn that we want to see in him.
Jus think about it he ends it all & retires
& who ever is left over from that era, heel even sending out good old JR & Jerry Lawler
If that does not give him maga heat I don't know what will.