First, as much of a shame it is, I completely understand your reasoning for abandoning the translation. As you said, there’s bound to be people at Key who can translate the letters into Japanese if necessary; it’d probably be better than a sloppy Japanese translation done by us.
Second, OHMYGOSH SENPAI NOTICED US <3 I’m blushing~
Third, holy crap this is all amazing news. I kinda feel like interviewing you @cloud668 or something, I’d love more information about Sekai Project’s involvement with the letter project and how you came in contact with them.