They should remove armor bonuses from the game and limit them to just increases in actual armor. Then you expand what the actual stat points do in new world to more than just basic weapon scaling.
Make 50 strength unlock medium armor and 150 unlock heavy. Make 50 dex give you the medium dodge and 150 give you the light dodge. Make constitution unlock small shields at 100 and tower shields at 200 and make tower shields better in all stats over small shields and make the stats apply when on your back. Remove armor weight from the game so you aren’t forced to mix and match ugly nonmatching armor sets together just to hit optimal weight.
I also think we should rework stats in general. This current weapon system of “your weapon scales with dexterity so put 300 points in dexterity” is garbage. I would probably make each stat give specific bonuses for every weapon type. So that every stat was always increasing some beneficial effect no matter the weapon you had. For an example, be a heavy armor 150 Strength healer with life staff and a hammer. You up the normal Focus stat to increase healing % for the staff but also some new effects like increase mana regen speed and reduce skill cooldown by a %. Maybe you get some benefit from strength like increased radius to AOE spells and reduced CC duration on yourself. Then you flip over to your Hammer and have less damage because of less strength but from focus you get reduced skill cooldowns and longer CC durations on enemies. Back to the way things were in the Alpha but expanded upon.