You don't...actually think Geno to be a "legal nightmare"?
Dude's owned by Squenix.
That's it.
SMRPG music? We literally have its composer on the team.
Geno is a lot of things that currently prevent him from being in Smash but definitely not a legal nightmare.
The fact that Nintendo and Sakurai can already use him in the game is enough. Cloud, Geno, and Mallow are the only Square spirits in Smash Ultimate.
Yoko is already on board with the soundtracks, so Geno's even a lot easier to get than Crono.
If they can use him in the game, then they can make him into a newcomer.
If Cloud is 100% Square property like Geno is, and was hard to negotiate for again, then Crono is going to be tough. Chrono Trigger's soundtrack is done by Yasunori Mitsuda and Nobuo Uematsu, two composers that aren't working with Square anymore. Sure Crono is 100% Square, but one of those composers is hard to work with, and SMRPG's composer is already WITH and working with Nintendo, and Geno being in the game already would be easiest for Square; Nintendo and Sakurai won't have to go to another separate soundtrack composer(s) if they stick with Geno. While I would like Sephiroth, there's one reason why I can't see it... if Nintendo picked the DLC like at the beginning of November, then I don't see it because Mr. Uematsu is the composer and owner of the FF7 tracks on the Midgar stage, and since September, he is currently on a hiatus because of an illness; he's very difficult to work with and I'd be surprised if they tried to get more soundtracks from him again. A Midgar stage is already enough, I mean, I think it really fits the theme of Sephiroth. I'll take Sephiroth and Geno at this point, give us some new soundtracks for the Midgar stage and a new stage + soundtracks for Geno's stage. It's probably going to be Forest Maze for Geno's stage, but I'd prefer the SMRPG stage to be Vista Hill since it's one of the most famous, historical areas in SMRPG and represents the entire game itself.