In her recent "Producer's Letter", Carrie Gouskos cleared up any rumors regarding Warhammer Online going the Free 2 Play route that's become so popular over the last year or two.
"We're not considering this option right now. We’re learning lessons from micro-transaction driven games; however we're not interested in directly selling things like armor progression or other piecemeal power options. What we do plan on introducing is paid services such as server transfers, character renames and other commonly found services. We are committed to implementing these services in a responsible manner and won't flip that switch until we're satisfied that it will not compromise your in game experience. Additionally, we will continue to offer that buffet of services by offering the entire RVR pack purchasable in three segments. Each player can get what the features they want without committing to the whole thing (though we do think all three packs will be pretty great.)"
She also revealed a few details about the upcoming Skaven themed RvR zone. This new zone is not designed to be the "new hotness" where everyone runs off to once it launches. Rather, the new area will integrate into the existing Tier 4 campaign, supplementing it rather than becoming a siphon. This new RvR experience will be just that... RvR. We’re building on the success of the redesigned cities and iterating on lessons learned there. The zone will be an epic struggle between Order and Destruction, with the victor reaping the rewards.
The RvR Pack will be introducing Skaven to the WAR. True to their chaotic nature, the Skaven will influence the battlefield in significant ways, skittering about, doing what Skaven do. Skaven will be playable by both Realms and are not an NPC "third realm".