Not a fan of putting this in the class mechanics. As far as class goes, martials should be martials IMO. Many of the subclasses do get off the wall cartoonish stuff and that is where these mechanics should reside for martials.Yes, this what I have been think about for a long time. Lvl 1-10 are hero levels and 11+ are superheroes, anime, whatever you want to call it.
Note, I am ok with Rangers getting some of that stuff because they are more of a Gish than a martial.