The Warhammer Online team has penned a new 'inside perspectives' article with several devs weighing in on Realm vs Realm play. Steven Engle and Keaven Freeman offer their thoughts on careers, class balance and more with specific regard to RvR play.
The campaign gives players a very compelling reason to engage in RvR. The completely revamped City Siege and campaign system (patches 1.3.5 through to 1.4.0) puts a straightforward emphasis on RvR that flows through the game. By providing the skeletal structure, around which skirmishes and battles can form and grow into larger full-scale battles, players are given the chance to influence and direct the campaign in the direction that best serves their ends. This in turn feds the overarching goals you can attain for your realm.