Sold minimum of 5 million to a maximum of 8 million in 3 days. Those decrease in physical sales don't matter at all.
Yeah 500m is pretty outstanding. Next year will decline most likely. Probably MW4, Advanced Warfare 2 or new ip. I have w feeling if it's not MW4 they'll probably bundle mw2 remastered with it to boost sales and revenue. But if mw4 is next year they'll probably wait for the next cod to do the remaster.