Grimghast even with the points increase are still the way to go imo. GG don't match up if you do a side by side comparison. Also don't agree with Sception personally, I still think LoN can be quite powerful. All the major factions took a hit and there are still some points changes coming up for things like Skaven and FEC which are the most abusive armies in the meta currently.
Here is the list I am currently working on if you're interested:
Neferata /w Overwhelming Dread
Necromancer - Fading Vigour
Necromancer - Decrepify
VLoZD [General] - Aura of Ages - Ethereal Amulet - Amethystine Pinions
3x 5 man units Dire Wolves
40x Skeletons /w spears
20x Grimghast Reapers
Gemenids of Uhl-Ghsh
1x Command Point
Idea is to use Nefs command ability along with things like Overwhelming Dread, Fading Vigour and Gemenids to debuff units into near uselessness (-2 to hit, -2 Attacks). Potent against the major power units in the game - blocks of plague monks, sisters of slaughter, evocators, grimghast etc. Decrepify in there because of FEC mostly. Couple this with the spell going off twice on a roll of a 9 and that is some serious debuffing. Still gotta do some testing on how this pans out though.
Other unit I am looking at including are some corpse carts for the +1 to casting as the list needs its spells to hit. Also umbral spellportal for extra range. Hope this helps