I hate to put a downer on the discussion, but if other 8th ed. army books are to be any guide, the DE are in for a nerfing. Empire received this treatment to bring them to O&G level and DE were above EMpire in power so it is safe to assume that they will get taken down even more. The posts calling for a few slight point changes will probably be disappointed as this is exactly what empire players were calling for, but instead we got nerfed. Models received nerfing AND point increase. With this in mind, expect...
PoK to be kept, but it will be pointed for Lords only (A 4+ ward is 50 points and the PoK is a 4+ ward against str.3 and only better after that)
Buffs to units to be more expensive and the buffing item to be more fragile (Cauldron of Blood)
Magic to be powerful in casting but to have serious reprecussions
Access to all Lores but Power of Darkness only for Dark Lore
Cav will decrease in cost
Infantry probably will remain costed the same or more for the most part.