There are a couple of tokens with non-premium arts (Harpy/Arachas hatchlings, LOU) which presumably are place-holders and will get better/improved arts (and therefore premium versions) in the future. They have already updated premium versions of other cards in the game (for example Warcier, Adrenaline Rush) so I 'm sure it won't be long 'till we see a premium version for the cards I mentioned above.
