Hi, generally speaking, this will not affect your self employed persons pr application, as long as you notify ircc about the changes of contact info.
however, there are some potential issues that might rise based on the process of your application and what you will be doing in Canada.
1. ircc might request for more proof for self employment, if the documents you submitted weren't enough to prove two one year experience. as long as that is covered, it wouldn't be a problem.
2. what you will do in Canada under an open work permit is also related to your self employment plan you submitted with your application. as long as that goes with the plan, it wouldn't be a problem too.
this is what i can think of for now. hope this helps
Your answer was very complete and clear, thank you very much indeed