Marching orders have arrived

My relationship with my company's Dubai office is of the "hurry up and wait, and then hurry up" variety:• First, I get the e-mail. "Hey, we may need you to come out and help us on a project that's coming up. We think it will start soon. Be prepared, we'll let you know."• Then a lot of time goes by. Days, weeks, sometimes even months. Nothing happens.• Then, finally, I get one of two follow-up