Considering SE's track record with DRK I predict the following:

Nerfs:
Shadow wall timer increased to 7 minutes
Living dead now requires you to be healed to 500% max HP
Damage penalty on grit increased to 50%
Blood Spiller max potency reduced to 300 and varies with HP.
Dark Arts MP requirement increased to 4800

Buffs:
Souleater potency increased by 10