Will not be affected. Under normal circumstances, after you submit a change application, even if you haven't received the notice of conformity, A has been cancelled, but because the requester on the change application is consistent with the original patentee, the examiner will only review the information registered in the application documents, and the cancellation information of A is only recorded in the industrial and commercial bureau, and will not track the changes in the patent application documents, so it will certainly not affect the change.
Hehe, we have done similar cases. Two years ago, the client company was restructured, its name was changed, and the original signature was destroyed (in fact, it was almost the same as your cancellation, because the original company did not exist after the restructuring), and it was only two years later that we were informed of the record change. As long as all the documents submitted for change meet the formalities, the change can be successful.