V6 doesn't just have more trainer text, it has ALL trainer text, excepting the sports domes and the Battle Subway (and way more are missing from the sports domes than the Battle Subway).
I noticed some were definite backwards steps when you imported my repository (for one, I never touched the Deru/Exit/whatever Power descriptions after my initial fork, so they went back to being terrible), so 6.5 is probably a good idea. I'll try to finish and test the Battle Subway for that.
Like I said earlier, it's getting easier to say what's not translated. So here's what's I know isn't fully translated.
- A small portion of the Battle Subway, though I've been focusing on the trainers, not the "structure," as it were, so I'm not really sure how small it is. Pretty much the same deal for the Trial House, since it apparently has its trainers in the same file.
- The sports domes, though about half of the trainer dialogue there is translated.
- Musicals.
- Shaga/Iris teaching you Dragon Meteor. (I don't know why I haven't gotten around to this yet, really.)
- Most of Black City and White Forest. (I don't think there's much in White Forest, but I've been doing all my testing in Black, so I don't really know.)
- Parts of Kagome Town and Village Bridge. Probably Kanawa Town, too.
- The Dive messages for "it looks like you can go up/down here" in the Abyssal Ruins. (Just couldn't find them.)
- Most event Pokemon events. (I'll do Victini as soon as I can find a working code for it, I swear.)
- C-Gear and PC help files.
- Wireless/Wi-Fi stuff which I can't test.
Ultimately, it's all optional stuff, though some things are more optional than others.