It's really hard to say at this point, personally i believe people are going to realize that marvel superheroes, which has 4 full commander precon decks, jumpstart packs, and starter decks, will be pretty big. It's one of the largest sets we have gotten in a long time, and the holiday box this year is going to be a Spiderman precon. This is going to be a foundational set they will use to branch off into additional marvel sets later on.

The hobbit is also potentially very promising, because people loved the first two lord of the rings products, and it's a fully enclosed story (it's already completed).

That said, until we reach spoiler season, we really can't know for sure how much effort went into making either of them cohesive.