Honestly, I don't get what they want to say with Peter and MJ's relationship "can't go any further". As if being constantly in danger because of being a superhero's wife wasn't a constant proof to be worried all the time. MC2 already proved that Peter and MJ's marriage has pretty much to show with every crazy adventure they have.
After erasing the marriage from continuity, they didn't get anything right with Peter's love story. Carlie Cooper, Black Cat, Mary Jane... All those relationships ruined, especially after they made them pass through the whole "Superior Spider-Junk" thing. They made it like Peter was the responsible of all the horrible things, when it was Octopus. I saw a good shine of hope in Spider-Island when MJ and Peter fought together against the Queen's army, which made MJ finally realize Peter's point of view when he uses the webs.
That's why I believe that the marriage (and the daugther) must be restored when Secret Wars is over. And before you say the old excuse of made Peter old, you should realize something.... PETER IS OLD!!!! For Pete's sake, this is a character with more than 50 years of stories. 50 YEARS!!! They always presented him as the "anyone's man"; well guess what, any "anyone's man" grows up sooner or later. You can't keep him as a teenager forever, especially because being always in the same Status Quo about "jumping from one point to another" is really tiring. At some point, "everyman" has to stabilize his life, but they keep ruining any change in Peter's life in a ridiculous life. He's Peter Parker, not Peter Pan!!! Peter will always be THE Spider-Man, there's not doubt about that, but they can't keep making him look like a teenager with a completely unstable life. If you want a Young Spider-Man, you already have Miles Morales in the mainstream after Secret Wars to keep that torch.