Ridley will never get in, he's too big.
King K. Rool will never get in, that's ridiculous, he is nothing like Ridley, don't compare these two. He is irrelevant, his last appearance was in an obscure spin-off 10 years ago, Ashley will get in because she has lots of doujin that I jack off to everyday, nobody knows K. Rool besides a small pool of mentally ill smashies, his chances are zero.
Banjo-Kazooie is nothing like K. Rool (who I definitely supported from the start), don't compare these two, K. Rool is first-party and relevant, Banjo-Kazooie is never getting in it's just a smashie pipe dream.
Geno is nothing like Ridley, K. Rool or Banjo-Kazooie, don't compare him to them, K. Rool is actually very iconic, Geno is just a one-off side-character from a forgotten 25 year old Mario spin-off and he's third party, nobody knows him besides a small pool of mentally ill Smash fans. Sakurai lied in that interview to shut you mentally ill Geno fans up.
Isaac is nothing like Geno, Geno was a Sakurai pick, he explicitly claimed to want him, and he had huge fan support. Isaac is from a dead series nobody remembers and Sakurai hates him.
Krystal is nothing like Isaac, don't compare these two, she's never getting in, Isaac is the protagonist of his own iconic first-party series and had huge fan demand, Krystal is a side-character from a dead franchise that already has 3 reps.
Sukapon will never get in...