Well that means the story will be the same as the comics
But Avengers: Age of Ultron might have included Scott and Hope to join the Avengers with Iron Man, Captain America, Hulk, Thor, Hawkeye, Black Widow, Quicksilver, Scarlet Witch and Vision
You can also get an accurate animated adaption of it in the Avengers Earth’s Mightiest Heroes tv series. It would probably play out differently since Hank isn’t a member of the Avengers in the MCU nor was he on decent terms with Tony.
^That’s also covered in the tv series I mentioned above. Hank would’ve essentially used Ultron for similiar purposes that Tony initially envisioned: to protect mankind and stop alien invaders and villains. Although in the tv series Hank used Ultron to rehabilitate criminals and using his Ultron bots for violent actions is what lead to the villainous Ultron that we’re familiar with.