Awesome, thanks for adding this suggestion Dbonejones!
Co-op is not a feature planned for WW launch, but it is certainly something that can be added post launch as a future feature on the roadmap. Scribe had suggested the idea of a player-driven roadmap for future features following launch, and I really this idea as it gives the community real power to drive the next phase of development.
As we get more requests like this, we can start to discuss them as a group and prioritize when these features get developed. Certainly, it also helps for more players to +1 this idea and add their suggestions to it as well