I don't want them scrapping the current class system when all they need to do is implement a bonus system that gives you a bonus for setting up jobs yourselves. Its already half there. You can make most of the classic FF jobs by mixing and matching skills you just have to do it yourself and theres little incentive too, so a system that gives you a bonus for doing so would be great.

(Added Healing and MND if equipping Cure on a "White Mage" job title while being any magic weapon class.)