Urriak Uruk
Gaming is fun, and fun is for everyone
My bet is for Kaladesh because is arcanepunk, and this means vehicles, and theses can be sold by Hasbro as toys. One of my April's fool jokes was telling there would be published as comic a crossover between Kaladesh and Transformers.
D&D is not really used a "toy-brand" by Hasbro, beyond the miniatures of Wizkids (which can be made for any product).