Only question I have for now is how hard is it gonna be to assemble the set? Is each boss gonna drop a piece? One piece per completed raid? Full RNG? etc.........
Really not looking forward to a Pel style grind for the pieces if that's how they are to be acquired.
From the screenshot, it looks like its barter style... maybe morgul crest type.
The armour pieces are bartered for specific tokens looted in the raid. There are different tokens for T1 & T2, which is a very good thing. There also seems to be no way to get T2 gear by only completing T1, which again is a very good thing.
It also looks like each of the 6 bosses drops a specific piece. Though you can trade a specific armour token for another piece by spending Ancient Ithil-coins, which are awarded for most bosses. For exemple, you can trade a T1 shoulder token and 20* Ancient Ithil-coins for a box from which you probably can choose any T1 armour token.
Jewelry/offhand token seem to be random and not tied to a specific boss. You can also trade a jewel token for a jewelry box by spending Ancient-Ithil coins.
*I can't remember the exact number. Trading a token for a box is more expensive for T2 tokens than T1 tokens.