They are very correct in not being able to give any advance information.
The way the scheduling system works, on a Sunday they post the schedule information for the following week. As example, yesterday (Oct 2) they posted the schedule for the week October 10 - 16. And the only people who can see my schedule are the schedulers and my supervisors (or anyone who can log in with my ID, which is only me).
And he could be transferred between now and then.