Not listing big topics like "Hairstyles for Viera and Hroth", but among a smaller wishlist:

1) Vertical axis for furnishing placement
2) Replica "All Classes" YoRHa sets that are purchasable with their respective coins
3) More dyes, especially purples
4) New stuff to the customization panels that aren't hairstyles
5) A new miqo'te male idle pose that isn't yet another variation of "left hand on waist"
6) New sitting idle poses across the board
7) A /sleep emote that works outside of beds
8) More Amano inspired outfit designs
9) FF7 Remake collab when it comes to PC
10) Hrothgar female before the expansion is over