DBS - Fire Artwork - Next Single?

Looking for the Let Down single, I've found this awesome artwork, recently added to the digital download of "Fire".

(Click to enlarge)

I'm not saying that Fire will be the next single, but why they would create an artwork only for the digital release, after few months? (Fire was originally released in September)
Count that only as a rumour, nothing confirmed.

Source: iTunes Store Italy

Thoughts?