Meh... totally not feeling that one. Feels way too contrived for me. Indy was never a one woman man in those years, and I doubt Marion is the type to sit at home and write a journal for when her hubby goes off to work again. I think they just wanted a Grail Diary-type collector's thingy to put in the box.
Actually, all this stuff, the publicity stunts, the gold X-Box, the diary, that terrible Troy Baker video... It feels like they're just trying way to hard.
Anyway, thanks for keeping us updated, Threepwood4life! 🙂