Do you mean this track? Certainly sounds like a different Cross-Examination theme (although it could be Moderato instead of Allegro).
If that's what he's talking about, wouldn't that just be the 'juror conviction' segment music? That's how it sounds like to me, with the following track being an 'Objection' theme.
But doesn't the "juror conviction" segment play kinda like a cross-examination?
Also I still doubt the following track (also the track from the web site) is an Objection theme, the beginning just doesn't fit an "Objection!" moment.
I assumed that those segments of the game would indeed play similarly to a cross-examination, at least conceptually. An analytically slow paced, but somewhat confrontational tune. It really seems like it would fit, to me.
And I dunno, the moment in that trailer that plays the song is exactly a "turnabout" situation where Ryunosuke regains his composure, and the song sounds like the most triumphant one I've heard from the game yet.