The Namor - Sue thing will never stop, just like Doom will never be redeemed. There are things that are backed in the characters that will never change. Just like Batman will never clean up Gotham and the mutants will never be accepted by Humanity.
The concept of growth in comics is really hilarious, it's really only additive. Batman can get countless sidekicks, we get new mutants every week it seems, the FF can expand but at the core nothing will never fundamentally change.
At some point you just realize that these characters existed decades before you were born and they will exist almost unchanged decades after your death.