I just had a thought.
Final Fantasy is Square Enix's, mostly Square's biggest IP, is it not? I bet it has a lot of characters people want to see in Smash Brothers. The problem is, to me, that there are many characters from many different games, all with different settings, stories and characters that are not the same cast and such throughout the series. However, the bigger problem is, what can characters offer from that series that does not have to do with swordsmanship, magic and other things that can be seen in the series, that many other characters already in Smash Bros. have? I am not doubting that there are characters who are exceptions to this, and I even bet that there are characters that actually are exceptions, but I wonder how many of them are the main characters/villains/etc. We do have Cloud and Sephiroth in Smash Bros. as of Ultimate, but aside from perhaps Black Mage, Laguna Loire from Final Fantasy VIII, Terra from Final Fantasy VI and maybe Clive, well, correct me on why I may be wrong, because I'd like to know what characters can offer from the Final Fantasy series, for even if there are more unique ones, I do not see them getting in over the main characters, or maybe main villains in Sephiroth's case. I do also think Enix's Dragon Quest, aside from monsters like Slime, could be the same case. I am not saying that Final Fantasy and Dragon Quest are all about swords and magic. Far from it.
I just want to see where I could be wrong.
EDIT: I mean, they all have the "star power", do they not? Still, they seem to have varying degrees of importance in gaming compared to one another, the characters in Final Fantasy games. Plus, with so much a character can offer with so little in terms of who can get in, I can't say it will be easy for Sakurai to choose who gets in, let alone deciding which characters can offer a lot in terms of gameplay. There are so many Final Fantasy characters, I don't see too many of them getting in as playables in future Smash Bros. games.