YOu probably will not get corrected tags. THe info that is encoded on the bar code of the tags will reflect your current reservation. I was there last week-end and had changed DVC reposrts a few days before the trip. I called MS and asked what to do. The CM said not to worry, the info would be correct on the bar code. The luggage arrived at my resort (the correct) one, about an hour after we did.
Despite the comments you might read here from disguntled folks, to me having free transportation and free luggage retrieval is wonderful!