I don't know, if you look at the secret base photo it looks the same as ANH Vader -- belt boxes widely separated, smaller chest box, original non-folded tunic, cape with stitch lines along the edge, longer chest armor, smaller cod piece, dome looks duller and still not seated low enough --
-- I wouldn't go by the professional pics as the belt and chest boxes keep changing.
...this Vader seems to me a complete recast of their ANH Vader with just the RO gloves.
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I can't get enough of this pic. Just jaw dropping.