Been trying to imagine what Otto's next step would be following SSM 12's conclusion.
Does he "need" to be a villain? He appears to be financially sound, having had a pretty lavish lifestyle as Elliot Tolliver, and able to set up a lifetime fund for James Martin.
While he says he would humble Spider-man in their next encounter, he appears to have no particular desire to confront him any time soon.
I don't see him trying to impart some sort of "legacy", he already did that with the Octavian lense in Ends of the Earth.
Does he try to continue going the heroic route in his own way? Doesn't seem to have worked out for him, twice LOL.
But what's his motivation to continue as a villain? If Emma or AnnaMaria had died I could see that as motivation, but beyond that, after everything that's happened, I don't see how Otto works as the villain he had been previously.