Let’s also not forget that an additional Captain America adventure further jeopardizes the perfect run of the character in the MCU. I’m not the only person who holds the Captain America run in high regard, and I’m not the only one who would be a little upset if it was tainted by a tacked-on appearance. Don’t get me wrong, the MCU has brought back characters in the past with success, some of whom had seemingly more permanent exits than Captain America. Even so, their endings weren’t nearly as meaningful or emotional, and once you get an ending as Steve Rogers did, I think it’s best you let that be the end of it.