They've pretty much stated how they want to monetize the game:
1. Make more products aimed at players, rather than Dungeon Masters. Per WotC, DMs are on 20% of D&D players but pay the vast majority of stuff. So they will be looking for ways to sell to regular players. I believe they mentioned more merchandise, and I imagine that we will see more branded products in general aimed at casual fans. But I think this category is relatively small potatoes.
2. Monetize the IP much more effectively. This is really what they were talking about: movies, TV shows, advertising, theme parks even. They have this thing with a massive cultural footprint (a "10/10"they called it in this regard) that doesn't make nearly the money off ancillary products as something like Marvel or Lucasfilm, etc.. That's what they want as the future for D&D.