First up is the new tower mechanic. In a nutshell, the towers are PvP-enabled zones that automatically flag players for conflict five seconds after they've entered. Temporary promotions will be in effect for characters from levels 10 to 49, and statistics and action levels will be raised to level 50 for the duration of a player's time in the tower zone. The towers can also be captured, which brings bonuses to every member of your faction in the zone. The Quest devs have also added local and world defense chat channels to facilitate battlefield communication.
Finally, the new patch has also increased the renown level cap to 10 and there is new PvP gear for sale at various capital city quartermaster NPCs. Read all the details on Alganon's 2.5.2 patch at the official website.