At this point, I think we're arguing over which is a better-tasting flavor of shit sandwich, because while there may arguably be one or two NECESSARY retcons in Spidey's future - such as the one that undoes OMD - there simply cannot be any such thing as a GOOD retcon for him anymore, no matter HOW good it might be, because the characters has already had TOO MANY retcons. Even HAWKMAN has literally had less retcons than Spider-Man, and Hawkman had enough retcons to render him UNUSABLE for a DECADE.
Even when OMD is retconned - as it SHOULD be - it's STILL going to suck, simply by virtue of being yet another retcon, when the character has had so many already that they've become toxic.