I would like the Necromancer class, after re-doing the delves on a new toon, I noticed there are a few necro npc's and controling a skeleton and some of the animations are rather cool. There are other animations that could be incorprated into the class, ie, a black aoe pool with bone arms coming out etc. (Eden Hollow)
This sounds more like a Necromancer conspiracy theory then a real proof. Many mobs had animations added/changed not only necro NPC's. Basicly in almost every major update patch notes You can find segment that describes changes to mobs animations and abilities.