I can't help but feel that since nighthaunt got expanded into a full army, that maybe soulblight will get the same treatment... eventually... Nagash may have eternity but GW does not. Then again they still haven't made armies for the two main elf factions (shadow and light) so we could be waiting a while. But given what soulblight units currently exist, as in nothing anyone runs other than bloodknights and vargheists, there is plenty of room to expand to add infantry like vampires swordsmen or living thralls and maybe make units for different creatures other than humans that have been victim to the blood kiss. It'd be nice if they got named characters as well, like say bringing back Isabella Von Carstein as a hook for old world VC fans, they could easily handwave her existing in AoS by saying her having the Von Carstein ring let her survive the destruction of the old world, plus it would be a cool lore reason to have undead armies that want to tell nagash to stick it where the sun don't shine. But in their current state I find myself running legion of blood over soulblight for when I feel like running a vampire list, extra attacks for bloodknights and vampire lords along with a bravery debuff aura trumps the mediocre bloodline buffs from soulblight in my opinion.
Anyone have any ideas on how soulblight could be expanded on or how to make a soulblight list comparable to what you can do with the legions/grand host?