Title pretty much says it all. Let us know when our guys smash up an enemy rift, or when they succeed. I think seeing a message "Defiant have destroyed the Rift in Shimmersand" will help prove to other defiant a strong group is formed, and will possibly incite Guardians to come attack.

Also along this line perhaps a scoreboard of sorts could be come up with keeping up with weekly totals of win/lose for each faction displayed in the main cities for both sides. Maybe a weekly buff like increased favor gains form world pvp rewarded to the winners.

Just a thought.