The foreshadowing in Deadlight is Materclass... Not only you get the diary from the beginning, but also Randall Wayne's dialogue is inconsistent sometimes. Talking about his family as if he only separated from them recently. Talking to his friends/group about his family as if they knew them.
Anyway, half-way through the game, I predicted the plot twist. It was satisfying seeing it come true at the ending of the game.
Maybe that makes it too predictable...? But I like it.