A "Showerthought" is a simple term used to describe the thoughts that pop into your head while you're doing everyday things like taking a shower, driving, or just daydreaming. A showerthought should offer a unique perspective on an ordinary part of life.
Now that Marvel got them, I doubt its gonna be any reboots after the next, in quite a while.
But they will have to switch out actors as they move on to new projects, becomes too expensive, or get too old for the role. And leaving their biggest earning superheroes unused or dead isnt profitable. I'm calling it: Iron Man and Captain America will return, played by new actors, still within the same MCU continuity, within a decade.
They tossed Kang, but they're still moving forward with the Multiverse. I can see Secret Wars ending with IM and CA coming from another universe, plus Black Widow, Quicksilver, etc.
Joseph Quinn and Vanessa Kirby aren't 8 and 10 years old.
/s
Next next.