Okay so quick theory,

You know how in both season 3 episodes Belos is searching for a body to inhabit? He did it with animal bodies and Hunter in episode 1 and with a grimwalker and Rain's puppet in episode 2, I think in episode 3, he's going to posses the Titan because in the watching and dream trailer, it opens with Eda asking Luz where she thinks magic comes from and she says the heart while showing Belos's thrown room, with the Titan's heart, and later in the trailer it shows Rain fighting off Belos trying to get somewhere, and around them it looks like the thrown room. Also there's that deleted scene where the Titan gets up and walks into the boiling sea, so that could have been foreshadowing

IDK if this was even intended by the creators but if it is, I called it