First, please read the title of the post if you're about to come and throw shade and negativity - the entire point of this post is to "dream"... things that you'd love to see in ESO, that you know simply would never happen (for whatever reason that may be)... now, I'm not talking "zero lag", because I still have hopes ... or asking for "no bots" because I still have faith... however waining both of those things are... so lets go for unadulterated wishes and dreams that Zenimax simply cannot, or would not, ever fulfill...
Here are my 2... to get the ball rolling and to start you getting creative.
1. Pure PVE version of Cyrodiil
A giant scale raid... like 100-200 people all fighting for the same side to defeat the NPC empire. Not just have NPCs defending keeps, but have them sieging keeps too. A new style currency (not Alliance Points, but something similar). All the fun of PVP and sieging castles etc, but without the toxicity of others ganking/griefing etc!! There could be time limits on it, where individuals and the team as a whole have a score (just like the real campaigns).. The possibilities are seemingly endless!!
2. Play the "Bad Guys"
Okay, I know you can roleplay this already... but what if your entire purpose was to not just "clear" a dungeon, but to save it from being cleared??? It could almost be PVP... you get to be the Dremora, Daedroths... even your favorite dungeon/trial bosses!! You get to control Mehrunes Dagon and swat those pesky little Khajiit in their smug mugs!! Or it could even be as simple as still working the same way now, but getting to play a Dremora race, or getting to pledge to the Waking Flame or Dro-Mathra (instead of The Fighter's Guild/Mages Guild). Embrace dark powers instead of skills like the fuzzy warm Dawnbreakers etc..
Okay.. so... what's your wishlists look like?