It will be close. Depends mostly on whether or not it can pull through in Japan. If it doesn't do as well there it will miss 8 mill by about ~200-300k.
@ Rolstoppable: you have to be kidding me. PS3 went sub-10k/week in Japan and was barely scraping 25k/week in America. Even if its 2008 is totally underwhelming, despite all of its game releases, it HAS to do better than that.