Janette,
The student expectations I include are all of the standard expectations for the online course. These include such things as grading policies, communication expectations, and other course related expectations. There are times I have to go back and revisit these and refine them with more detail as course issues arise, such as professionalism expectations when students begin to respond to each other in unprofessional ways. You will find yourself refining these the more you teach online.
Herbert Brown III