Last weeks pre-order numbers are in from over at VG Chartz and we are seeing some encouraging numbers. Skyward Sword picked up 68,675 pre-orders, bringing it to a total of 521,500. There are still 4 weeks to launch, meaning this chart will update another three times before Skyward Sword is removed from the charts. With the near 70k pre-orders this week, I think Skyward Sword is inline to surpass my 700,000 estimate and depending on how things pick up, perhaps…