What do you think would be the developer's justifications for keeping these five?
- Probably a late stage clone addition, has a unique recoil damage quirk and provides another "cutesy" Pokemon to balance out what is likely to be a lineup of "cool" and largely humanoid Pokemon by default.
- Well, I think Young Link is actually played more than Toon Link in-game so maybe they took some of the online usage data into account. And Young Link is just as viable a choice to return as Toon Link at the end of the day, the latter is just more visually distinct and covers his own branch of the series. I wouldn't be scratching my head all that hard if Young Link is just the favored child Link variant this time.
- Evergreen and recognizable character, dynamic role in the roster as a mook and a moveset unlike any other character on behalf of its er... "body" type. They clearly had a lot of fun animating Plant and it remains one of the roster's quirkier surprises that has seen a fair bit of retrospective appreciation.
- Smash's most pure archetypical grappler, and we know directly that Sakurai wanted to add a wrestler to the roster. It's extremely easy to see why Incineroar would come back, actually. I think they have a significantly higher chance than these other characters even if I'm not all the way convinced.
- Perhaps Corrin comes back in a Fire Emblem roster that prioritizes diversity in the wake of the usual debates surrounding the series representation, with their dragon abilities really elevating their moveset into something fresh. I think it's a bit of a hard sell over their more popular counterparts but Sakurai was driven to add them because of their distinct abilities. It's safe to say if a character was deemed worthy enough or interesting enough to add once before, that same pedigree can carry over into the future.