It gets a makeover from long years of warmer periods due to slightly closer proximity to the Sun. Also, it probably gets refaced a little from tidal interactions with Charon and its other moons. I’d be surprised if it doesn’t endure impacts from space debris as well.
I remember reading someplace a looong time ago that eventually, millions of years, perhaps, Pluto and Neptune will either collide or Pluto will become a moon of Neptune...................