Persona 5 is getting free downloadable content (for the first week it goes live) which contains costumes making the cast don costumes from ATLUS & P*Studios Catherine. To say some of these outfits are fitting is an understatement, as some of them match the character designs really well.
They will be free between October 5th-10th and after the 10th they will cost 800 yen. Another bonus these costumes contain is that they add a new battle theme (not unlike the Persona 3 & 4 Costume Packs for the game) and accessories for your characters.
https://www.youtube.com/watch?v=b1eJrDspEEs
Source: NeoGaf