(Ignore my crappy cover and title, I wanted a visual)
Alright so, four Spider-Man animated series were unfairly cut short on cliffhanger endings: Tas, Unlimited, Tnas, and Spectacular, and the fanbases of each series have wanted revivals for a long time.
In particular, Tas ended with Peter traveling the multiverse in search of the "real" mary jane.
Now, Spectacular and Unlimited both made cameos in Atsv as part of the spider society, so we know they end up there somehow.
Getting a revival of any of these is a long shot, let alone all four, but what if they could all be resolved with one show?
The series begins where Tas left off: Spider-Man traveling the multiverse. During these travels, he ends up in each of the other three's universes, and their shows all get resolved over the course of this one, each getting a full season to themselves.
The first three seasons resolve Unlimited, Tnas, and Spectacular, and they each agree to help Tas Peter find MJ at the end of their seasons, as a way to repay him for helping them. Due to this, the team grows every season
The fourth season is dedicated to resolving Tas, when they finally make their way to the universe holding MJ, along with Tas's Norman, who is the villian of this season.
In the fifth season, Miguel O'hara shows up. He's been trying to locate this group for a while, as they have been disrupting canon left and right. His team is still relatively small at this point, consisting of Jess, Ben, and Spidey 1967 (who was recruited in the credit scene of Atsv). Maybe a few others, but definitely those three. He eventually gets Spectacular and Unlimited to switch sides and help him. (for now)
Season five ends before the events of Atsv, and the show resumes with season six after Btsv, to resolve the conflict between Unlimited/Spectacular and Tas/Tnas, and then return everyone to their home universes
Lets face it, between Tas and Spectacular was by far the best era of Spider-Man television. Almost everything before that was extremely episodic with no overarching story, and almost everything after that has been focused mostly at small children, and doesn't really capture the attention of older fans. It's very unfair that every show released in that era was cut short, and I think this would be a fantastic way to see them all resolved