A well geared K/P or P/K can do wonders. And in siege, P/K may not be able to do damage, but being hard to kill and healing people near you who can do damage makes your role a crucial one.
In European version of romcast, they mentioned that Knight is a class to get the next round of balancing changes, so who knows what will happen. Currently our guild knights are not too happy with the class, but with rebalance, they are likely to be buffed more than nerfed.
-- Rustyx --- 92R / 92S / 92M on Reni (Guild KnightShift). Yes, running the new FOTM R/M, cause I am not elf enough to be WD/S.
Oh, and people who have more than 3 classes are clinically insane.