As i see it there’s two different options on how to make the customization to weapon skills. Weapon traits or new weapon skills that can be changed.
Right now we have very few weapon traits, there’s like 1 for each class that decrease the cooldown by all weapon skills by 20% and adds more damage.
If ArenaNet made a traitline for weapon skills only i think it could be easier to balance skills. While entirely new skills would make it more difficult too balance between all skills available to a class.
Weapon traits could in this case add an effect to a weapon skill or increase the effectiveness of it, like damage, decreased cooldown, additional stacks of a condition etc. This would be easier for ArenaNet to balance.
An example, Zealot’s Defense (Guardian shield skill). Instead of only blocking projectiles for three seconds it could also block melee attacks.
What would you like. A weapon traitline or entirely new weapon skills?