We dont know. All we know right now is that pretty much any new armor set in RoI and certain weapons (whether new ones or exotics) use Ornaments.
Since our Y2 stuff carries over, anything that uses Chroma probably will still use Chroma. Which isnt much in the first place, honestly. (Some Legendary weapons, Spektar armor sets)
Besides, all the Chroma items are in the general inventory category, I don't think most of us are even 50% in that particular part of our vaults. On the other hand, we don't know how many different types of Ornaments there are, so...