They will NEVER disable CRZ. CRZ and Sharding are the key tools that keep the server stable for under/over populated areas. Lightbringer IS High Population. I almost NEVER see people from my own realm in the game world. It is always an assortment of people from an assortment of other realms.
That’s why I am arguing for RegionRealms. If they are going to encourage me to play with people in other realms they might as well make it so that I can get in a guild with them and build long lasting friend groups. (Communities don’t cut it I explain my reasoning here: #ConnectAzeroth - The Final Realm Connection)