First of all i'm a big fan of Elder Scrolls series but i have a problem with where ESO is going , so this is my humble opinion
ESO really begs for open world non consensual pvp , that way it would be really in spirit of what Elder Scroll games are.
Open world non consensual pvp has it's problem in a form of griefing and a lot of people don't want to be forced into PvP but how about this idea:
Make all of the Tamriel a Battle Zone not just Cyrodiil with option on capturing the villages/castles/towns with exception on Faction starting towns.
Make Tamriel huge (as you already plan to) but with no fast travel/teleport of any way.You die you respawn in your main faction town.
Yes traveling from your town where you respawned back in the fight if its on the other side of the continent will be a game breaking for hopefully not a lot of people (elder scroll games were always about exploration and traveling anyway ) but on the other side it will make your adrenalin pump harder if you are far away from your home.
Reason for this is that new players NPCing in their faction zone will hardly encounter enemy players because of the hardship for enemy to even get there in the first place alive and it would put griefing to minimum.
Now i don't know if this big non instanced world is even possible with todays technology and i'm sure you will find a lot of problem with this type of game, so your opinion please ?