Vergeben is a fragment of the past. He is of no use to us anymore.
Now then, let me share what I believe to be the last four Fighters of this pass. Crash Bandicoot, Shantae, Rayman and Geno. I placed Geno at the end due to the fact that he makes the most sense as the final DLC Fighter, since he has been requested the most out of any video game character in the past, dating as far back as Melee according to some research. Sakurai even wanted him in Brawl but couldn't due to licencing issues, since Square Enix is stingy with their IPs. I believe Geno makes sense as the last character. But if Square Enix still refuses to give him up, I'd say Dr. Eggman can take his place as Fighter 11. After all, Ultimate has added several villain characters like King K. Rool and Ridley. Since Mario has Bowser to go up against, among other characters and the main antagonists of their franchises, it's possible for Dr. Eggman to show up. Yeah, Tails would also make sense due to him being one of the most iconic sidekicks of all time, but Dr. Eggman is one of the most iconic villains of all time, and Sonic lacks a villain rep in Smash. As for why I added Rayman, it's because Ubisoft has also expressed interest in adding him in. I don't know how popular Rayman is in Japan, but he does warrant a Smash inclusion, even if Michel Ancel isn't around to work on it. Crash and Shantae are self-explanatory. The former being one of the most popular characters of all time and the latter being the current lead in the indie game industry as well as Smash lacking an indie rep.