Not with Leica. If they make an APO lens, it is APO - and I don't know if any of the Canon L- or Sony G lenses are apochromatic corrected. Do you know what this means of extra effort? https://en.wikipedia.org/wiki/Apochromat
If Sony decides to offer only G-lenses or Sigma only Art lenses, you were right. But at the cost of a normal Leica lens, this extra of color correction doesn't matter that much as if it would affect a 500$ lens.
It's not just a Leica marketing name - it does tell more about the character of the lens, than just a geeky G or L or goldring blabla.
If Sony decides to offer only G-lenses or Sigma only Art lenses, you were right. But at the cost of a normal Leica lens, this extra of color correction doesn't matter that much as if it would affect a 500$ lens.
It's not just a Leica marketing name - it does tell more about the character of the lens, than just a geeky G or L or goldring blabla.