I don't think I fully grasp what your idea for the new skill system is.
I think you're saying something like skills are specifically tied to one-handed or two-handed, but can't be used by both. Even if I have that part right I don't understand how that would work for magic.
I also don't think that you have offered a compelling reason to switch away from the current system of skill-granting schools to a different system.
If I understand him correctly, he wants to separate offensive and defensive skills from tree-skills, similar to how they split social skills from all the other skills.
Yeah, sorry for my Runglish. What I mean is that if you lvlup now you have to decide if you want to advance in weapon damage or to have more abilities, or to have more durability and you have only 1 skillpoint to decide what you want to have. And in my opinion learning new abilities should go along with boosting damage or defense, it shouldn't be a matter of choice. And also you shouldn't be able to improve your thievery or sneaking skills or leadership along with learning new abilities, this should be a matter of choice. I think the whole structure of the skill tree lacks balancing logic. You can't max bartering along with persuasion, thievery and lucky charm, that's fine, there is logic in that, but you also can't make your char tankier or more damaging with more abilities at the same time, which makes single school heroes gaining power much faster, and that is encouraging a player to max some certain attributes like str, int or finess. If you rework it, making a player max weapon or defense skills along with boosting some shool or learning a new one, that makes multiclass and singleclass hero's power gain more smoother, and this will also give a player reason to think about spending attribute points on something else (he will have option to learn new abilities and will need to max other attributes to make them work well). This makes necromancer build and tank build more viable, because a tank will gain durability or damage along with abilities. This will also make classic builds (ranger, assasin, mage, knight) more powerful, but it is possible to avoid this by one and only measure - removing damage bonus from school skills.