I dont want to see Hatsune Miku in ffxiv.. It would be weird. I wouldnt mind some sort of arena though. Could have a small arena for 1v1 pvp battles or a large arena for multiple battles at a time(you can only hit your opponent, nobody else) and a larger arena for events with spectators. It could be for dances/musicals or it could be for plays. It could even be a place for fireworks shows during the holidays(spend new years with a loved one for instance/imagine seeing the count down to new years hosted by Kan E Senna xD) Could also do some player ran events and things like the history of the world and national geographic type tv shows air on some some of projector/hologram in the air via magic. It would be a great way to learn lore. Man there are so many possibilities.