Happy Endings Everywhere!
Jarvis, Rhodey, Steve and the military find James "Bucky" Barnes and rescue him from Hydra (which has been getting weaker thanks to Fury taking Tony’s advice). Steve gets his friend back, and since he's had therapy and been integrating much more, he’s able to accept Bucky as he heals and finds his new self.
They don't live at the tower cause that would be a crappy thing to do to Tony, but over time, the three of them form an interesting friendship based on their shared loathing of and participation in the dismantling of Hydra.
***
Doctor Steven Strange becomes a Master of the Mystic Arts and builds a strong friendship with Yao and Wong. His scientific mindset makes it easier for the Order to build a bridge to the “real” world.
Yao is secretly greatful that time shifted in this manner and that she was gifted with the friendships that came to be.
Stephen's smart-assery meshes rather hilariously with Tony’s - "awesome facial hair bros" indeed.
Depending on the day, Yao and Wong either enjoy it and roll with it or hide.
***
Doctor's Banner and Stark "science" regularly - Bruce feels at home for the first time in a long time, and somehow he knows the Hulk feels it to. Dr. Betty Ross and Dr. Jane Foster swing by occasionally to "science" as well.
When Strange and Tony get going, Bruce and Hulk either hide in the lab or grab popcorn and watch, depending on their mood.
Every month or so, Tony and Hulk go to one of SI's demolition sites and SMASH things for fun. It's one of their favorite things. Of course, Tony says it's "for science!"
***
Natasha finds a measure of peace and allows herself to consider that she's more than what the Red Room made her.
Being given the safety net at Stark Tower by Tony, recognizing how flawed the profile on him was, being kept out of the Shieldra betrayal fiasco but being able to take part in dismantling Hydra gives her a sense of purpose security she never expected, and never knew she needed.
The Barton family adopts Nat and she allows it.
***
Thanks to Tony’s heads up and kick in the ass, Fury actually uses the Shieldra Wake-up call to reassess what the organization he's been a part of should be as opposed to what it became.
It takes work, but accepting powered individuals as a not-automatically-a-threat opens a lot of world changing opportunities.
***
Thanks to the changing relationship with Asgard, with Odin out of the way, Earth/Midgard takes its place among the Nine.
The Guardians are invited to visit, which they do, and the Nine never knows what hit them.
Earth... changes... slowly but inexorably. Awareness of the greater cosmos works its way through the populace, and awe overcomes fear. Humanity comes together.
Nothing is perfect...
but there is Balance.