It looks like you're new here. If you want to get involved, click one of these buttons!
There is now a petition for TESO up, it includes a couple of sources, some concerns around the topic of the segregated regions of the map in Tamriel. In an interview Matt Firor stated that you will not be able to enter the enemy's territory unless it is in Cyrodiil's PvP Zone.
Anyhow, You can read more about it at the petition site linked below. Please support this cause and help us get what we want.
EDIT: Our goal has been partially achieved. Many a petitions were made and our contributed as well. My thanks to those whom supported our cause. Personally I'll settle for being able to explore but not PvP in other factions territory. This petition has now been cancelled. Once again, thank you for your time and effort in this thread.
The petition can be found at:
The petition has reached its goal!
You can also watch this video:
And read this interview: