If the enemy chooses not to defend then the fight should make it to their capital city. A city siege has never once happened on Wolfenburg or Phoenix Throne (two "very populated" servers with supposedly active RvR). If players are going to stay then they need to experience city sieges and be faced with a truly imminent realm war. This is a realm war and players need to feel the pressure of losing territory to feel motivated. Mr. Jacobs, tear down this wall!

Make keep taking meaningful by adding a Darkness Falls type dungeon. Warhammer Online Gold, back in November 2007, was delayed in order to transform the game to align closer with DAOC's RvR but it forgot that one crucial element... the PURPOSE. Sure, city sieges are a purpose but let's be realistic - a keep is under attack in Praag... why would I go defend if it poses no threat to our city? It's going to take like 8 keeps, 2 fortreses, and a TON of RvR to make our capital city vulnerable. As of right now a city siege is not going to happen. So, we come back to the PURPOSE. I strongly feel that Darkness Falls provides that purpose. Find out more about Darkness Falls here.

Remove renown and victory gain from T4 scenarios. Scenarios should not be a means for progressing your realm rank when scenarios can hardly be considered RvR. They are unbalanced mini-games that have been abused by the players (whether intentionally or not) to level up and race to the end. I don't think the solution is to remove them altogether, but removing or curtailing the ability to advance in what is considerably the "end-game" player progression (realm ranks) in these arcade-like mini-games is necessary. Removing victory gain from scenarios is also necessary because these should not influence the realm war.

Merge the servers and merge them now. Let's face it, WAR was designed in such a way that a lot of players participating in the realm war is mandatory. Right now, especially in light of recent mmorpg competitions' releases, we're seeing the populations dwindle. Merge the freaking servers and you will improve the enjoyment of the game globally for all players.