I'm a little late to this but, during Nintendo's April direct, they announced that they will be taking requests for Smash Bro fighter DLC.
Who did I vote for?
On the safe side I choosed King K. Rool (Donkey Kong) and Krystal (Star Fox)
And for the unlikely side, but still have an chance, I choosed Miles "Tails" Prower (Sonic The Hedgehog), Klonoa (Klonoa), and Geno (Super Mario RPG)
I really do hope these characters get in, there's still hope for them.
BTW, who did you vote for?