@European discussion: i doubt they work on a european release of something. They are just 3 people. And as amazing as spacedrake is with translating from japanese to english, i doubt he can also translate that stuff to german, french, italian and spanish.
@Several products discussion: It is several software products, so it won't be an additional anime or the like (unless it's part of the game, like in Idolm@ster Shiny Festa *dreams and then sighs in resignation*). If it's several games, i do not know, but i guess. Considering this post:
Actually, how about I make it a bit more interesting. "Project Four" has involved more than one unrelated software products, tangential to the "main" project. Well, okay, they're all 'related' in a sense under p4 but
The tldr is, the scope of the wider "project" and making it happen has been... substantial, looking back on it. Like I keep saying - once we can finally talk about it, and what was involved in making it happen, the reasons for the delays and the inability to discuss it all will be very, very obvious.
And it should, I think, be a case of "once" or "when", not "if", at this point.
I think it's a main game and some spin off(s) from the same franchise, but not a direct sequel as in Trails in the Sky.