Congrats on the acquisition! Very rarely have we seen confidential packaging be made available for purchase on the secondhand market, so that's a very interesting find you have. The image itself is possibly new... I vaguely recall seeing it before, but I could be mistaken. Either way, it would've been part of the initial leaked images for Hero Factory's 2012 Breakout wave. This image shows Black Phantom's box art, featuring the same Evo with Hero-Cuffs thing as this Furno bag has, which means it would've been from the same stage in production.
Is there anything of note on the back of the bag, perchance?