The new packet takes the Fighter, Cleric, Rogue, Wizard and Monk to Level 20.
Skills are now ranked as dice (d4 to d12) instead of flat bonuses.
[I'm still trying to decide if I like this]
Backgrounds and Specialties have been expanded. They are clearly stated as optional, as well.
I think all classes has several choices that the player needs to make.
Spells go all the way to 9th Level.
I'm not sure when I'll dive into this, but I hope it's before the end of the year.