Some notes from the DMG:
- Aasimar as a race choice
- Spell point casting option to replace spell slots per day
- No sub-classes or sub-races
- There are a number of rules for time spent not adventuring
- There are a number of optional combat rules (flanking, facing, hitting cover, disarm, overrun, lingering wounds, and massive damage) Note: I am happy that all of these are in there, and indications are they resemble the 3rd edition rules.
- There are magic item creation rules
Lots of good stuff here.