They are not going to change because they are corporate brands. Just like Mickey Mouse. More so now that DC and Marvel are owned by Warner Brothers and Disney. They have a formula that works, and vested interest in keeping these character forever green for each successive generation.
Mainstream comics are a machine that will continually pump out stories from now until the end of time as long as profit permits. There is a lot I love about these characters and their worlds, but this never ending cycle is the nature of the beast
But they are not the totality of comics, nor do they have to be the driving force of the industry. Support the Independent press. There are books out there that offer a begging, middle, and end. Look to creator own books, where one person, or a team have a singular vision of their characters, and plan to develop that story over the course of years, and decades.
Along with the Marvel books I read, I also follow small press books. Here are a few.
Brian K Vaughn & Marcos Martin’s
The Private Eye
A story set in the future, where everybody where masks, and individual identities are closely held secrets.
Keiron Gillen & Jamie McKelvie’s
The Wicked & The Divine.
12 immortal gods who incarnate every 90 years. They live for 2 years, and are worshiped by the masses before they die again, waiting for their time to return. They are not world’s greatest pop stars.
Bendis & Maleev’s
The tale of a regular girl from Portland, who is going to start a revolution (at least that is what I hope)
Brian K Vaughn & Fiona Staples
2 people madly in love, and from different sides of the tracks, fight against all odds to keep their family together. Romance, comedy, tragedy, science fiction, and fantasy. You will laugh, and cry.
Who are your favorite comic creators? See if they are producing anything on their own, outside of the Big 2. You will be glad you did.