Gloria Union shares its producer and many other team members with Blaze Union, although Radiant Historia's Hiroshi Konishi and Dokapon Kingdom's Eiko Tameshige are handling the character art for this release rather than Rui Kousaki or Satoko Kiyuduki [REF].
Much like Blaze Union before it, Gloria's development was kept secret until its unveiling, unlike Gungnir, which JaJa discussed in its early stages on his blog.