It's been happening for years:
Spider Man, after having his identity revealed, a supernatural aspect to his powers added (along with a subsequent power boost) and a bunch of other stuff that would be impossible to reverse... has been restored to his sixties and seventies heyday by dint of a reality-warping deus ex machina.
Thor's come back from the dead along with his fellow Asgardians. Better yet, he's been deposed as king and exiled, so presumably issues of his comic will now involve more ass-kicking and yelling 'have at thee villain!' rather than dealing with complex trade negotiations in Asgard. Thor the exile was pretty much how his story began-- his alter ego Dr Donald Blake has even been given back his gammy leg, just like in the old days.
Captain America is currently undergoing a wholly expected resurrection and Hawkeye has already been brought back from the dead too. The Hulk is back on Earth, and though he's currently stuck as Bruce Banner, it's expected that his powers will return soon. Iron Man, even though he's sold almost everyone down the river and been responsible for most of the mess-- not to mention most of the death-- in the MU for the past seven years, will probably redeem himself in the upcoming Siege four parter. In turn, the events of that story will very likely restore Nick Fury and Sheild.
So basically, to cut a long story short, the cosy old Marvel universe-- with everything in it's rightful place, looks like it's coming back. It's been pretty bleak out there at times for my favourite characters, so it'll be nice to glow in some nostalgia for a while. But here are a few of the changes made over the past ten years that I'd like to have stick:
1) Keep J Jonah Jameson as Mayor. And make him run for President! The idea that a local newspaper can turn the tide of public opinion isn't really valid in the digital age. JJJ is a much more effective thorn in Spidey's side as Mayor than as publisher. Also the fact that he and Peter are now stepbrothers? Genius.
2) Don't give the mutants their powers back. What I liked about the X Men in the early days was that there weren't that many mutants, which made the characters more caustic and questioning of themselves. In later years the X titles became too bogged down in the politics of human/mutant relations-- it was much more fun when they were seeking out others of their kind across the globe. It makes their struggle to survive in a society that hates and fears them more urgent, and it makes the books less confusing.
3) Don't bring back the Wasp. I loved Jan, but the restoration of the cosy old MU should come at a price. Which brings me to:
4) Keep the registration act. Amend it, dilute it, but keep it there-- there's much mileage in it yet as a narrative device I feel.
5) Form a new team called the Doppelgangers and have it be comprised of Captain Bucky, Reds Hulk and She Hulk, Spider Woman and Daken! Kidding.
Next up (apologies to those who are now thinking TLDR): What should come next.
1) Let MJ and Peter get back together... but don't marry them. Yet.
2) Make Dr Doom the next big, big bad a-la Norman Osborn or the Skrulls. He's been around a lot, but has rarely been directly involved in any of the proceedings. That said, he's been lurking in the background during most of the big events of the past decade in the Marvelverse, so he's obviously got some kind of agenda. Let's see what that agenda is!
3) For the love of God, drop Norman Osborn off a building ... or have him turn back into the Green Goblin.
4) Once the Avengers are returned to the mansion and normality restored, give Kurt Busiek and George Perez another run on the title. Or give them Thor... I'd love to see Perez do for Asgard what he did for Themyscira in Wonder Woman. Not going to happen, but it'd be nice.
5) MOAR She Hulk! MOAR Frank Cho! MOAR Frank Cho drawing She Hulk!
That is all!