I wouldn't read too much into the macabre statement. 'Skulls, skulls, skulls' has always been a Warhammer staple, even more so than war-hammers. I don't think we'll see anymore of them than we did on the old Empire kits, which is to say they'll be prominent but they won't be mistaken for Death models.
What I do find surprising is that from the Skaven Deathmaster trailer, they've actually fallen into a more 'generic fantasy city guard' aesthetic than the Landsknecht-knockoff Empire ever were.