Now I don't know about you guys, but being as though the war in cyrodil happened very long ago it could have had a secret necromancy guild that has deteriorated after many years, thus not being in any other game. What I am trying to say is, wouldn't it be awesome to have a necromancy guild, or to "become" a necromancer like you would have to become a werewolf or vampire? Thats just my
opinion. I think it would be a great decision to put in the game.
Why? It grants the user the choice to somewhat be good or bad, not necessarily work for the prince of worms, but it allows more freedom in the game, also more variety.
For example, to become a necromancer, you would have to kill (said amount) of undead beings, capture their soul, etc. Once you become one, you could have a skill line similar to the mages guild/vampire etc skill line. Maybe a skill that allows a user to capture a soul of choosing in a soul gem, then use it in battle and summon the being to fight for you. Maybe a passive that allows necromancers only to make an enchantment on a staff to resurrect dead bodies, maybe a passive that allows users when they die to spawn zombies where they died, these are all just ideas. But, unlike other guilds and such, I think there should be a sort of leveling system that when the user uses more necromancy skills than anything else, can be able to summon more and more dead enemies until you could have an army of your own, however as OP as this sounds, so is emperor, it should be hard to be able to achieve this skill just as it is hard to achieve emperor, but there is great rewards.
All in all I think it would be a fun addition into eso.