a few thing I would want to be added/brought back; I loved the equipment part of the beta it allowed you to micro the game better with skills tied to weapons, another thing i want back from the beta is the spell casting system so your character would rotate skills, I feel like the "kill enemies to get companions thing should be available to people that went to tamer school and if you go to warrior school you can recruit mercenaries to fight with you and the mage can summon elementals with resources though that being said the schools should be moved to be available earlier so that you get companions earlier, finally I feel like the exp for rituals should be reduced or carry over after a ritual
i agree with Phantomfrettchen but something you could do is set a priority for skills so if its a 1 they will try to cast that first then the skills set to 2 so you could make it so your mage will try to cast heal before it casts slow