Reviewing Wyatt's work... he's done a lot of stuff on D&D going back to 2001, but his largest contributions were in the 4E era. He was part of the core development team that created 4E, and played a big role in the sweeping overhaul of D&D lore that produced the World Axis cosmology (among other things).
I had mixed feelings about 4E mechanically, but there were a number of things it did well that I wish 5E did a little better. And on the lore front, I consider 4E to be an unqualified success--ironic, given that one of the knocks against 4E was how it made lore take a back seat to mechanics! But the World Axis was a huge improvement on the Great Wheel IMO.
I'd love to see all that 4E lore revived and given a 5E treatment, perhaps as a stand-alone setting book. That probably isn't what Wyatt is working on, but if it is, I'll buy that in a heartbeat.