New Paragon Wallpaper - Shield Skin = ?

Does anyone know what skin that shield would be (if any) that is shown in the new paragon wallpaper? Something from the upcoming elite mission perhaps?

...I want one

not sure, to be honest i don't think there is any in-game sheild with that skin yet maybe with these elite missions we're promised we'll get them, also, why does Anet have to remind us that its from GW nightfall, i really don't like the big GW nightfall stamped in big bold letters on the backgrounds, throw them off for me :\