Cyrodiil is an awesome pvp experience and i feel it excels well at this but I also believe it leaves a lot out. I have spent a lot of hours questing in it with my friends. Here is some of the feedback we came up with:

1.) Make exp quest rewards and mobs give MORE experience than pve zones. Cyrodiil already has a ton of quests available. The issue is that the experience gain is awful. The Death penalty is really harsh when sometimes the ride back could be 15 minutes to the previous questing area. Add in the fact that not only can a bad pull kill you, other players can also + long rides back and you can see that the risk vs reward is way out of balance. Cyrodiil quests should be a viable alternative to pve quests and even encouraged through greater experience gains than the safer, less risk pve areas offer. These quests could even be VR only to offer another way to level for those that want to save other zones stories for alts. Another option would be to increase the experience from quest completion (not mobs) if you complete it in an area around a certain radius of the enemy alliance main base.

2.) Make quest slightly overlap with enemy factions. Encourage small scale skirmishes between enemy factions. By guiding players towards each other you add the sense of excitement when questing. Not knowing when or how many enemy faction players you might run into gives a rush to the player. I feel like this also would quiet some of the current request for battlegrounds and arenas because it would offer the small scale pvp players want.

3.) If users are in a group and talk to an npc give them the same quest! Since quest are random per NPC, currently if you and a party member talk to the same NPC you will both be given different quests. Make it so that an NPC will only give out a quest to the first person in the group to talk to them, then popup the box for other party member to accept that is currently in the game.

4.)Put a board next to the Bounty Quest that allows us to see the guild stores from each Keep. This was supposed to be a big feature that i feel has been really lost. If a guild takes a keep you can go to the keep and actually buy stuff from that guilds store. The time to travel between all the keeps is just too much to go and hunt for a good deal. Let me click on a board and then click on a keep my faction controls. Show me the store that keep is offering but make it REFERENCE ONLY! This way i know what is in each keep, but i need to travel there to still get it. This would add a sense of urgency especially if you see that the waypoint is actually cut off to it, or that it is currently under attack.

There have been some request recently for Zones that are hostile that all 3 factions quests in. This is already in the game with Cyrodiil, the issue is that the quest aren't done well. Cyrodiil is unique in the fact that it is the only place in the game that scales players together. What this means is that i can actually go with a friend 20 levels lower and do quests with them. I feel the changes above would greatly improve this experience and open up a lot more to do overall in ESO. Let me know everyone's thoughts.

TLDR Version:
* Make exp quest rewards and mobs give MORE experience than pve zones (Risk vs Reward)
* Make quest slightly overlap with enemy factions.
* Same quest for all group members
* Board to search guild stores for current controlled keeps (reference only)