So, Chris Perkins did a breakdown of the contents of the new DMG a while back:
- Chapter 1 -- basic concepts
- Chapter 2 -- Advice, common issues
- Chapter 3 -- Rules cyclopedia
- Chapter 4 -- Adventure building: including a template on how to build a single Adventure with at least one example
- Chapter 5 -- Campaign building: including a template on how to build a Campaign from a string of Adventures, and a sample Campaign
- Chapter 6 -- Cosmology
- Chapter 7 -- Magic items
- Chapter 8 -- 'A surprise': we have subsequently learned that the DMG has a full usable Setting, probably located here [Greyhawk...Confirmed?!?]
- Appendices -- maps, lore glossary, including a fold-out poster map