Actually, it sort of does look like the cladding in the renders. Look at cladding on the outer edges of the three wings. That's what it looks like, IMO.patrykus said:
Indeed, the website shows updated design, but it still doesn't look like test cladding to me. Myabe it's a detail that isn't shown in close up on the renders. Time will tell I guess. Anyway I think it worth to update the first post with new renders.