chalee is correct: booking 7 months out to any resort around Christmas conceivably could be difficult. That being said, there are plenty of success stories of being able to do just that at larger resorts (e.g., SSR), and also as mentioned, the waitlist can be your friend. However, a few such as VWL and VGF might be next to impossible to book at the 7-month point with even the waitlist being long odds. Still, as suggested above, book your home resort now if you've not done so already, call right at 7 months, then waitlist if what you want isn't available. Good luck!