@Titor
And I'm sure there's more people wanting everything handed to them; be it from past events or from content currently in the game. Currently the only exclusive content in the game is the FFXIII glamours, FFXI and DQX minions (bardings from past events as well, but some of those are on the Market Board). I could go a step further and include EX Primal clears/horses and Binding Coil clears/gear.

If SE were to bring back the FFXIII event, though, then they should throw in a new event (unrelated to FFXIII) with it. The reason for this is because the XIII event offers NOTHING to players who already did it. Including a new event with it gives everyone something to do.