Hasbro intended to release The Legacy Collection Droid Factory collection in 2012 to promote the 3D theatrical release of Attack Of The Clones, but the Disney acquisition of Lucasfilm quickly put a end to their plans. The action figures meant to be a part of this line were split between the first two assortments of the Black Series and the Amazon exclusive The Legacy Collection set linked below, both of which came out in 2013.
Collectors were surprised when the assortment originally meant to come out in two waves in 2013 found its way to discount chains across North America in May 2015. The date stamp for these figures all seem to be 22841, which translates to October 10, 2012. This indicates that the line was in production when it was canceled and the stock found in 2015 was a clearance of what was produced.