Alright, so this is probably a bit of a pointless or just a dumb idea, but may have some merit, especially to some Tournaments.
What I'm suggesting is a slight change in the music during the Semifinal and Final rounds if possible. In this case, like other themes from Pokemon like Elite Four or some of the console titles like Stadium or Pokemon Colosseum.
Like, For Example, During the Semifinal Rounds, it'd play something like the Cipher Peon theme from XD on one of them, while the Final Round would have something like the Cipher Admin theme from Colosseum. While it may not be much, it'd be a nice added bonus and make tournament matches feel like they put the stakes higher even for those that like that kind of thing. Of course, there's no issue if it were to come during 7th gen, and I'd assume the music to still be randomized if the option was given, but only songs from Pokemon games would play.