Honestly, as far as I can tell, the canon is not meant to be taken seriously XD Puyo Puyo~n was the first to derive a serious tone to the series, but that was immediately taken away with Puyo Puyo Fever. So, whatever Compile had planned, that is gone now. So, the current story is mostly going back to the roots of the first three entries in simply bringing comedy to everything the characters say. Like with Sonic himself, I would have loved to see what the original creators would have done to Arle.
Finally? I think ever since we got Puyo Puyo the first time, everyone thought it was very innovative, but SEGA did not think so. Same deal with most of the Saturn titles, as little to none were localized; even though most of them have cult followings now and are considered very good games these days.
1) I have not played it enough to really give you a deep insight on the story. So far, I am mostly fiddling around trying to figure out where to go at all. The townspeople sure are confusing sometimes.
2) Partially. I can read the first syllabary without error, but the other two I am still heavily working on. I know a handful of Japanese phrases, but nothing is concrete that I can make out a LOT of hard Japanese.
3) The title, from what I can make out, is "People Who Hobnob Together." And the rest is just Arle rambling on about some teachings, sightings and pissing off Schezo (think that is him) throughout it all, though I do not really have much time to do translations right now. Even if I did, I can not promise it would be accurate at all. Most of this is in Kanji, which I struggle with a lot. But, if nobody has done so in the future, I could brush up more on my skills and do it
though do not expect it to have even a hint of professionalism. It would just be simple enough to grasp the concept at best.
4) I do not have many friends that are very lingual in both English and Japanese, so I would have to say no to that. Most of them are not even all that interested in Japan.
Yes, at this rate, I can see Arle having a chance. Worst-case scenario, she is Japanese exclusive, I have both versions of the game so I can live with that! Just as long as she appears at all. I mean, beggars can not be choosers after all. Given that Arle is still only mildly popular here, would make sense to give her exclusivity in Japan so that she at least shows up in the game at all. Remember: Marth and Roy were both going to be exclusive in the Japanese version of Melee, so this idea is not impossible.
Of course, not that I WANT this. But, if this gets Arle in the game for sure, I would not be upset.