Trading and chat are implemented in openEtG (which is a fan made version of the game).
The Card ideas section has a subsection for art and stuff like that, but it has been dead for a while, as most people with artistic sill went inactive, but there is no problem in posting new stuff there (that would be great). Once again the largest art output we have been getting lately comes from openEtG' card arts.
The expanded stats would probably be easy to implement, but I don't think these are so important (you can tell people about your favorite element in your forum profile, but that's it for now)