GuGong administration leased floor space to 星巴克. As long as 星巴克 does what was agreed upon. "该不该搬出去" is out of question.

Unless there is a covenant in the original lease agreement that allows landlord to unilaterally terminate the relationship, but even if that's the case 星巴克 is entitled to continue its business and be protected by law until the termination takes place. No voluntary 搬出去 is obligated.