There ... Is something I found weird about Geno's token.
I expected Spirits to also be used as tokens , however... Gamexplain found around 450 freakings Spirits for the moment. UI wise , this would be a nightmare for someone to pick the Spirit they want as an online token. ( I wanted my Camilla token tho)
I think only AT's and Mii costumes characters could get token at this point. I didn't saw a single token that wasn't that.
So I'm pretty sure the Mii costume come back... BUT ! That doesn't mean he must be a spirit.
They could do a spirit battle with him like Mii gunner with stamina , Fountain of Dreams , only stars appear or something like that ...
But why would he throw Geno as a spirit , alone? I honestly think he would look out of place without some other SM RPG Spirits (Custom Robo got more spirits despise beeing a New Mii costume) like Mallow , Croc , Bowyer , Frogfucius , Smithy , Exor , Boshi , Yaridovich , ect...
I honestly think that , if he is a spirit , alone , Sakurai just did it because it didn't need much time and had the Mii costume to do so. It's just one Spirit battle , it take less Time to developp than a trophy , and Mewtwo and Lucas were trophies.
But if they are others SM RPG Spirits... I dunno , I kinda have a Bad feeling about that ...
But also , Nintendo could just not Care at all , and ask for Geno anyway...