Never say never. Someday, perhaps in your lifetime, perhaps in a hundred years, somebody may discover something worth mining there.
Perhaps, but definitely not in our lifetimes. I have nothing against Pluto, I just find it ridiculous that there are thousands of other objects just as notable as Pluto floating around the solar system that don’t have the same celebrity status. Why is that? Because of some irrational human tendency to glorify the already popular. Even if it’s a tiny ball of frozen nitrogen billions of miles away. Is that how science works?