What if they brought TP back but instead of linking every physical skill to it like they did before they use it like they did in FFXI where it accumulated from attacking and then could be spent on skills that would be usable when TP hit 100% but offer additional scaling or bonus effects based on how far past 100% TP was at when used to a cap of 300% TP? Could add a bit to those solo button skills that get pressed every time they're off cooldown.