Yes, its good sign that there is some movement on your file and I hope the decision stage comes soon. To relate at which stage BGC is at, I referenced this
post and then kinda correlated the BGC status change I noticed during my file processing.
As for my PR card(s), GCkey indicates that they have mailed - this was early last week and I was hoping to get it in the mail box late last week, but nothing yet. Mail box checking has become more exciting and I end up emptying mail box every couple of days, only to find bunch of food coupons and that dummy capital one card, total waste of papers and ink.