Today (4 Nov) has been revealed the registered domain related to AKS company has been registered. Total of 4 domains registered via ICANN, those domains registered under the same company as AKB48 Team SH (Shanghai).
They are all in China:
AKB48 Team BJ (Beijing)
AKB48 Team GZ (Guangzhou)
AKB48 Team PRC
and Team CD.