Yeah it's sounding like this is heading towards the eventual passing of the torch to the new generation of Avengers.
Heck with enough time passing by T'Challa's son could be 18 and ready to take on the Black Panther mantle
Makes me think Doom is hopping universes to snuff out all the offspring of Avengers
"Nowhere in the universe will they be safe from my wrath! I'm coming for all of them!"
I think the passing of the torch will be more about The Avengers stepping back from being the big MCU thing to make way for the rise of The X-Men. Even if they won't admit it, I think the people in charge have figured that the OG Avengers can't really be replaced with what will always feel like The Avengers JV squad. The X-Men though are big enough with lots of appeal to really match the popularity of the old Avengers, provided they pick the right actors for the roles.