Fan Nickname - Luke's Fan Nickname is Ambassador Asshat, for when he cranks up his Jerkass nature Up to Eleven as an ambassador to Akzeriuth. That's what happens when you give a spoiled rich kid authority and tell him that his freedom and the opportunity to work alongside his beloved father figure ride entirely on him doing an impressive job.
No Export for You: Live in Europe? Get a region 1 PS2 or learn Japanese and import a Japanese copy, it's the only way you'll ever see this game. Also what (quite reasonably given the series's past) fans expect from the 3DS port.
Subverted. The 3DS port has been confirmed to be an international release. If you're in Europe and still want to play it on the PS2, then you'll have to import.
What Could Have Been: Apparently some stuff was discovered that suggests more stuff was Dummied Out. While quite a bit of it was restored for the North American localization (And the 3DS remake), among the things found were not only un-used Hi-Ougi cut-ins (Even for the cameo teams; a bug could have Rid show a cut-in for Burning Phoenix suggesting this was even programmed in) but also Van to be playable at one point.
X-Buster was apparently intended to be Dist's Hi-ougi/Mystic Arte.