Link - Typhlosion (PSA, on the vault)
Samus - Genesect (On the vault)
Fox - Infernape or Hitmonlee (subject to change, ideas welcome) (On the vault)
Pikachu - Stays the same, though might be extra costume for Raichu (On the vault)
Marth - ??? (ideas welcome)
Luigi - Sudowoodo or Treecko (subject to change, ideas welcome) (On the vault)
Diddy Kong - Aipom or Exeggutor (subject to change, ideas welcome) (On the vault)
Zelda - Gardevoir (On the vault)
Sheik - Gallade (PSA, on the vault)
Pit - Dragonite (PSA, on the vault)
Meta Knight - Heracross (On the vault)
Falco - Scizor (PSA, on the vault)
Charizard - Charizard PSA (On the vault)
Ivysaur - Venusaur (PSA, on the vault)
Squirtle - Blastoise (PSA, on the vault)
Ike - Aegislash
Snake - Unsure for now. Might port it over Magmortar but not only am I unsure, it's a fairly hard rig overall, ideas are welcome)
Peach - Lopunny (On the vault) or Jynx (ideas welcome)
Yoshi - Kecleon (On the vault) (ideas welcome)
Ganondorf - Darkrai (PSA, on the vault)
Ice Climbers - Plusle and Minun (On the vault) (I will be using the Pichu Bros PSA as P&M's moveset)
King Dedede - Rhyperior (On the vault)
Wolf - Zoroark (On the vault)
Lucario - Stays the same
Sans Ness - Psyduck or Alakazam though i'm not sure if Alakazam will look right (ideas welcome)
Sonic - Sneasel (On the vault) though it might be subject to change (ideas welcome)
Bowser - Groudon (PSA, on the vault)
Wario - Gengar (PSA, on the vault)
Toon Link - Marowak (I actually made an attempt on this one, but it's very glitchy in game because I didn't rig it right, I think. You can help me over on my thread on the Model Help forums, and I will credit you when I upload it on the vault, link here:
http://forums.kc-mm.com/index.php?topic=77891.0)
R.O.B. - Mewtwo (PSA, on the vault)
Olimar - Celebi and Oddish (On the vault) (ideas welcome)
Captain Falcon - Blaziken (PSA, on the vault)
Jigglypuff - Stays the same, though might be extra costume for Wigglytuff (On the vault)
Lucas - Delibird (On the vault) (subject to change, ideas welcome) + Ekans texture over his grabs (made it myself a while back :p)