It's hard to say what exactly Brawl needs. The simple fact is, that is has some major flaws (Metaknight, ICs, Banana Spam, Camping, Tripping) that need to be ameliorated before Brawl can return to it's glory days. I miss back when Brawl was popular, but people only played it because it was the latest game, as, once Sm4sh came out, people instantly abandoned Brawl. I know that the original game has a value that mods don't properly portray, however, unless we can find a way to fix all of these problems (or at least MK, ICs, and Tripping), then Brawl most likely won't be advancing any time soon.