If Geno does come with only 2 tracks from his own game, which hopefully doesn't happen, I don't think it'll be that much of a problem considering we already have a LOT of Mario tracks in the game to begin with. Though some more tracks from other Mario RPG titles would definitely be a nice solution.
But hey, all in all, I'm glad for the fact that a lot of people will be happy with his inclusion. It's definitely deserved I feel, granted he has been requested for a very VERY long time.
That is IF he gets in of course. Not really banking on anything yet, and I'd advise for everyone to go into the direct with an open mind and keep their expectations in check.
This is our curse for being European, SNEK...