Future ranger utilities?
I save Ascalon against another Charr invasion, and my father trifles with doors!
I’m personally fine with only 4 options per category, as you can only slot up to 3 at any time anyway. Many of the existing ones do need a lot of improvement/reworking however. As for multiple classes sharing the same category, I think it’s fine and smart where appropriate, as long as there are some distinct differences from those of other classes. (ex. Warrior physical skills and Daredevil physical skill feel very different imo) Having structured and familiar categories makes things simpler and more clear, a huge benefit in a game with complex combat.
When an existing category doesn’t make sense however, it’s clear they are fine with adding new ones. (ex. Berserker has new rage skills)