The weapon skills are perfectly fine just the way they are
I would like to see more weapon skill lines added. Like a pole skill line that has quarterstaffs, spears, halberds & naginatas. For magic add a magic sword skill line(Spellswords exist) & give it the destro staff elemental treatment (fire, ice & lightning), that way you need to use an elemental sword for the skill line & regular swords won't work with it.