Via Spike Chunsoft’s website, the cover art for the Robotics;Notes Double Pack seems to have been updated to more closely align with the Japanese variant.
Judging by the new preview image, it appears as though the final product will be boxier than the initial preview image suggested. Most likely, this will be to allow the game case and the pin box to fit in one package.
The depicted age rating has also been updated following today’s news that Robotics;Notes DaSH has been rated “Teen” in North America by the ESRB.