[n-a] [Suggestion] Use existing battle system to add rpg component

I feel like N-A Next generations is fantastic but at times a bit static in terms of the gameplay, I would like to propose the idea of adding a rpg element with the existing system, e.x you could create your own character and 'equip' and 'unequip' abilities based on an ability tree or maybe something else with quests/missions as unlock requirments for the abilities, or perhaps some point system to unlock abilities. and perhaps you could level these abilities up to move up the 'skill tree'

What are everyones thoughts?