they've done som re-releases (bloue, kitschmas), where they also reformulated the pigment. and they do re-promotes, such as with frost and rose with she shines. i don't remember any other instances where LE pigments were re-released. usually, they'll just release a different, yet very similar color (think deckchair with goldenaire), or release a different set of colors altogether. still, there are definate similarities, lately. notice naval blue and blue storm, and ruby red and accent red. sometimes, the LE pigments have pro store counterparts...