I really don't think we should be stating that there will be co-de's. It works for touken ranbu because of their limited outfits and poses in the game.
What we should ask for is full nendoroids, that way it's at least plausible we could get a long haired piece with casual/workout/etc clothes plus the rings. The price difference between full nendoroids and co-de's (which are completely static and come with zero accessories) is not that large: 3000 yen vs 3500/3800 yen.
If we wanted every single outfit from the show for Yuuri and Victor, in that case I could see co-de's as an alternate approach to save time and money for gsc.