I know creating new pieces would require a lot of work, but how about expand our current options?
We could have NPCs pieces added, from hairstyles (Desdemona, Mother Mayhem, Belladonna Vetrano), their costume pieces too, other costume pieces proliferated to other sections (spiked collar added to detail 2, helmets details too).
Also backpack: existing weapons as back pack, for weapon archetypes or merely cosmetic, like dual katanas, axes, bows, riffles, pistols, battons, staffs...
I also always wanted this hood with hair and their loincloth:
I think the Homecoming team is doing amazing, but the customization makes me wanting to play with more costume pieces added, and new options.
I know other proyects of City of Heroes have NPC pieces unlocked and I would love to see some of them added to Homecoming too.