Fan Casting Kang The Conqueror

During the 50th century an alternate version of Kang named Nathan Rider learns of Ironlad, Kang, and all his other variants and starts to agree with Kang and decides to become the new Conqueror renaming himself Kang and stealing a time machine to go back to when Kang and Ironlad left in Avengers 4 and he kills Kang but before he can kill Ironlad, Ironlad escapes and Kang is left the final Kang after it's revealed that he has spent centuries killing all of his variants and now he's unstoppable that is until Ironlad returns with Cassie Lang and together they trap him in the quantum realm. The movie ends with Kang returning to the main timeline and now after everything that Kang had done everyone in the main universe remembers Avengers 4 with some minor details changed including the formation of the Young Avengers not happening. In the post credits scene, we see Cassie Lang going home and finding her father Scott alive and Hope Van Dyne as an adult and in love with Scott. It turns out one other thing was changed was that Scott survived Ultron and Hope was born years earlier and Hank was redeemed and defeated Ultron. Scott informs Cassie that they found Janet Van Dyne after years of her being trapped in the quantum realm and now she is back. To sum it up in Antman's part of the Marvel universe it's pretty much how it was after the MCU's Antman and the Wasp without the dusting post credit scene.