Of all the DLC for FFXV, the one that stands out the most from a quality perspective is Ignis, so I would love to see Takefumi Terada helm the next one. Particularly if they can also get Mitsuda back to do the theme at least. And I would like the characters designed by Kunihiko Tanaka.
I don't really know much but whoever will make it should do their damn best to reclaim their loss reputation from the previous title that is until up to now having a damn DLC updates and addition.