True. I wish they added an "Everything" button.
Here's hoping that they are planning to add everything in the list and are just surveying for priorities.
I've read from a jp blog that the jp version that the survey has more info, like for instance, the line of lucis deals with the history, how they got their powers, etc. For Ifrit's betrayal, it will deal with the story if the six gods. The world of ruin will deal with what happened 10 years after. And Noct's disappearance will deal with the story during his 10 years absence, i assume it has something to do with the bros than him.
If I have to choose one, I am torn between the line of lucis, ifrit's betrayal and the world of ruin.
Help.... hahaha.