My base miles have been posting as usual within 4 - 5 days. The 5x (non-rate) promo miles have been just about all posting at the same time. The 5x rating miles have been credited to my AA account first roughly two weeks later, and then retroactively appearing at my RN account. However ... when I checked my RN account today, there were a slew of "pending" miles that I could swear (without having gone through and matched them) already posted at AA!
I did have one dine a few weeks ago that I thought I'd have to send in for credit, but it appeared a few days later than it should've.