Every time I've seen this topic come up, a straight answer was never given (that I can find, apologies if I missed something).

At the moment, I have three character slots.

(1) Storage Mule
(2) Main Character
(3) Teleport Mule

When the game switches over to pay mode, I will be dropping at least one, if not two, of these slots. If I were to delete two of them, my character in slot 2 would /not/ move to slot one. So there is NO misunderstanding about the answer I want, the list would appear as such:

(1) EMPTY
(2) Main Character
(3) EMPTY

Now, if I were to change my Square Enix account options so that I only had one character ID in play, what would happen when slots (2) and (3) disappear? Does Main Character get pushed back to Slot (1), or do I ragequit FFXIV after realizing that I end up with:

(1) EMPTY

A clear answer on this would be extremely helpful at this point.