On Jonah as Mayor of NYC:
What's really sad about this? This would actually qualify as an entertainingly good story idea - and even something approaching a new one, at least by NuSpidey standards, in spite of a certain bald billionaire already making it to the White House in DC Comics - except that Marvel is so inept that they somehow managed to upstage themselves, by already putting Norman Osborn in charge of all of America.
When the Green Goblin and his team of unrepentant supervillains already have full government license to arrest and execute every unlicensed superhero in America, how much worse can J. Jonah Jameson make Spider-Man's life, just by being mayor of New York City? That's like finding out that the guy who raped and murdered your wife just got elected president, and has already repealed the Bill of Rights, but then being told that your new boss at work was one of the teachers that you simply didn't like back in high school. Somehow, I suspect that first revelation is gonna sting so much more than the second one that it might even succeed in numbing the pain of that relatively lesser trauma.
Which is why, from a dramatic standpoint, this actually fails on two fronts.
On the first front, it's an anti-climax to have Jonah, an unbearable asshole who nonetheless possesses some bare minimum standard of basic human decency, be the follow-up "villain" to Norman, who's been transformed over the years into the most singular and powerful personification of pure sociopathic evil in the entire Marvel Universe. After all, even Mephisto is considered less of a credible threat than Norman, in spite of the universe-altering powers that Mephisto demonstrated in "One More Day," and only the Red Skull is more personally detestable than Norman, and that's only because I'm pretty sure that saying that any other Marvel character could be as bad as the Red Skull technically falls under the heading of Godwin's Law, given the Red Skull's politics.
And on the second front, since it doesn't make Spider-Man's life any more dangerous than it already was (and it doesn't), then it just comes across as yet another way of hammering home the Charlie Brown theme of "Boy, Peter Parker's life sure does suck, to a degree so extreme that it completely defies all the laws of probability!" At this point, you might as well follow it up by revealing that Mary Jane broke up with Peter because he has a small penis, and given what we've already seen from Quesada and the "brain trust" on NuSpidey, I seriously wouldn't be surprised if that actually happened, especially since the Quesada-approved Spider-Man: Reign already gave us a full-frontal nude shot of Peter looking less well-endowed than Jude Law on a cold day, and also revealed that his radioactive spider-sperm would wind up giving Mary Jane terminal cancer, AND NO, I AM NOT MAKING ANY OF THIS UP.
It's really a shame, because at another time, and with better writers and editors, this really could have been something fun, but as it stands, it's nothing more than another "meh" moment in the NuSpidey era.