Talk to the PNP about it. They are the one people who can really tell you what will happen in your case. I would think that it also depends on if it is supposed to be a temporary or a permanent move. Also look into if your current work permit actually allows this. Unless it is an open work permit, you are bound to the employer and position but how about the province or city?
You're right Leon. The work permit (if not open) will specify location as well.