Somebody posted a translation of a French components list. From that, plus the "1 Orange + 5 Yellow" sleeve requirements listed @ FFG's site, I deduced what I think are the correct card sleeve counts/sizes on this thread... Re: Card sleeves
(won't repeat the info here in case it turns out to be wrong & needs correcting!)
FFG site says Orange, I think that'd be those so-called tarot-sized cards (like mission and reserve cards in XCom)
I assumed that the orange sleeves are needed for another deck, and that the investigators will have some exotic size - like usual. But now I see that all the other decks appear to be mini american. My bad, thank you!