Here is my write-up (with loads of screenshots) of all the major changes coming to Cyrodiil in Update 20!

Update 20 Cyrodiil Changes Guide

Guide includes:

- New Map + New Icons
- New Outposts
- New Repair Kits
- Destructible Bridges - Bridge Repair & Goat Trail
- Destructible Milegates - Milegate Repair & Caves
- Town Changes
- Postern Changes