I think they could use the same action bar for the new battle system changes, and I also think that once auto-attack is implemented, a lot of these action bar problems will go away. Since we won't have to spam 1 anymore to attack, it will give us more time to find and select the action we are preparing to use. I do agree that there should be plenty of UI options in this game though. It doesn't have to be black or white. Give us options so that all the players can make their own decisions on how they want their UI handled. Showing all three action bars would be great. I definitely understand with the cooldown timer needing to be visible for all skills but whether the action bar is always showing or not is definitely a cosmetic choice that is up to the player.