I’m not really confident in any lists of cuts considering the next Smash is likely many, many years from now. The Switch is going to have a rather long lifespan, or so I would think, so I doubt that the next Smash would be on the table for several years.
That said, cuts based on home series factors seems to miss the point. It dismisses factors that Sakurai considers for characters like, for example, Cloud. He said at one point that Cloud was created the way he was because they figured a lot of people would flock to the character. If they made him hard to play, he’d be hard to play for a LOT of people.
Similarly, cutting so many characters just because they’re “outdated” or “not relevant” is silly when the basis of the game itself is...gameplay. Are they fun? Are they popular within Smash? How long were they in Smash for? How many fans do they have? How different are they from the rest of the roster? What do we lose?
For example, cutting Ike is one of the biggest mistakes I think i’ve ever seen. He’s popular, is unique (the only heavy swordsman) and is a popular pick in Smash.
If you’re going to make cuts, starting with the criteria of “what’s relevant” will make this game weaker in design, similar to the reasons why PSASBR ultimately failed. They went with the more recent icons rather than the tenured ones (mainly because they couldn’t get the rights). That can hurt.
Gameplay, gameplay, gameplay. It’s the most important part!