These are the things the Character Ref team are currently thinking about changing/adding to the rules. None are yet set in stone and more details will come out closer to the time.
Odds and Sods
Revise Summon Undead Servant in line with Animate Dead and the Monster Manual
Rework Monster Manual
Remove Enhance Undead
Add more examples to how to apply background skills
Codify manufacturing skills and times for mundane items
Codify costs and times around Masterwork Equipment.
Add in some form.
Add costs for purchasing ritual scripts
Add to game
Codify Roleplay requirements and penalties
Revise/Define phys-rep standards for armour.