Actually encompassing Central Europe, the center of the HRE was in Germany - and so was the new home of Warehouse 8. By this time, the Regents of the Warehouse had learned over the centuries not to let its host empire to slip into decline before relocating. Signs of this decline became easier for the Regents to recognize, and so in 1517, when Martin Luther initiated what later became known as the Reformation, and after 250 years in Germany, the next move was again to the East.
On a rainy day at the Warehouse, Pete accidentally triggers an artifact that transforms the team into two-dimensional diorama versions of themselves, and returns the Warehouse to its original, unstable design.
Who knew Claudia had those moves?! OK, so maybe they're artifact-induced, but we're so in love with the spangles, we don't care!