Hi,
I've got a bit of experience in the field. Is this an undergraduate elective (for, say, 3rd or 4th year students)? If so, my guess is it will be an applied controls course, possibly with an integrated lab session. Mechatronics is a cross-disciplinary field; in addition to controls, there should be a strong component of mathematical modeling of physical systems and mechanism/linkage analysis. The practical mechanics and electronics will probably (and regrettably) be glossed over simply because there is so much other material to go other. Again, if this is an undergraduate course, I would guess that the focus would be controls. Specifically, (linear) classical controls of second order systems (a lot of work will be in the Laplace domain, and you'll hopefully develop an intuitive feel for 1st and 2nd order systems along with a newfound respect for the frequency domain).
I could be wrong though; you could spend a lot of time on mechanism synthesis and analysis, working more on kinematics than dynamics. It really depends on the professor and the point they want to get across. If this thread stays alive and I think of anything useful to say, I'll try to remember to do so. Happy decision making...