Good theories so far, though I would add that since Harry can use his suit to hack Peter's, as they're from the same source, I could see Harry using...
The Prime Sentinels are technically cyborgs, but yeah. And Spider-Man has the Living Brain and the Spider-Slayers as robotic enemies, if we can keep...
Presumably in jail as of the end of Hallows' Eve's mini, but she did seem pretty confident that she'd buy her way out, so if she shows up again . . ....