The other sequel I long for, after the third read of this, is "Avengers Coda II: IN THEIR PANTS."

...in which Tony makes Bruce's briefs even more stretchy, bio-engineers commandowear for Steve, works up a bruise-proof clip-on cup for Clint, and rolls and chills titanium balls-bearing boxers for Coulson.

After which he'll cross the aisle and finally get to those bionic pants for Charles Xavier.