Currently it looks like we wont be able to do any pvp outside of cyrodil (correct me if im wrong), now dont get me wrong i think the whole cyrodil zone with the massive battles is a great idea and i have no doubt that it will be awesome. We will only be able to go into the territory of the other factions at lvl 50 and we wont be able to see other players. Now i get where zenimax is comming from with this, after all the want to create an experience very similar to the elder scrolls games that we know and love and getting ganked over and over again by lvl 50 players would really kill a great deal of the immersion. But i think this is a very bad desision by zenimax (im gonna present a solution since i dont wanna be that guy that just complains and adds nothing) because for me it would remove a great deal of the feeling of adventure. These zones are called "adventure zones" after all and whats more adventerus then the constant possibility of you and your friends being attacked by a stealth group from the other faction that you are at war with. What i would really like to see is small fights breaking out between groups where stealth chars use the enviroment to sneak up behind the enemy healers and socerers and great swordfights breaking out at the frong (i think this will be really great because of the blocking and dodging ect). Now what i would do if i were zenimax is create a system in which only lvl 50 charaters of opposite factions are able to see each other (just phase out lower level chars) maybe even phase out pve orriented characters so that people who are looking for real adventure rather then just questing without any really exiting danger can get that without pissing off any of the pve minded players. If i cant kill the basterds from the others factions on sight i feel this would be a big mistake and make this awesome looking game a little less awesome.
Besides cyrodil i would think its a great idea to implement an arena system with emmersive enviroments to fight in (not just a colloseum allthough that would be cool aswell). Now before i get a big hate storm im not talking about a poor balanced arena system like wow that forces players to play it in order to get better gear. Im talking about gladiator style matches maybe in teams of 4 or 5 that just face it off (with cosmetical rewards like cool colors for armor or insignia's or somthing proving that you are a baddass in the arena)
Please read my post give me feedback and tell me what your oppinion is on the matter