I’d add the short duration reboot between it and the previous series.
I think Spiderman is overdone, at this point. I don’t see much of a need to try to shoehorn him into the MCU, it’s doing just fine without him and would suffer from the addition of an angst-ridden, wise-cracking teenager. If they really want a smart-a** it would be better to try to pry Deadpool away from whoever has him (Universal?)
First thing they seemed to do in the Spider-Man films was ditch his “nerdy” glasses. That was a bit of the character’s background. I guess it wasn’t poster-cool enough for today’s kids.
And for much of the character’s history, he wasn’t a “team” member in any of their series. He would team-up/cameo/crossover but wasn’t a joiner.
if they really plan to make the Civil War mini-series into a movie or set of movies then they will need to get SM into the mix. I’d be surprised if they don’t also try to deal on X-men since they play a big part in the storyline as well.