"It’s not impossible, but neither is it likely. UNTOLD TALES OF SPIDER-MAN was almost twenty years ago, so the time to capitalize on whatever success it had is long since past." Also, if the poster wasn't aware, we've HAD books like that. X-MEN: THE HIDDEN YEARS, X-MEN: FIRST CLASS, and FANTASTIC FOUR: THE WORLD'S GREATEST COMICS MAGAZINE come to mind. (I don't know that we've ever had an ongoing Avengers retro book.)