How's a definite maybe. There are so many variables from dates, to room type (studio, 1BR, etc), to location (standard, Park view, lake view). If you are able to book prior to 7 months, when it opens to all
DVC members.
As a member for almost 15 years I can say that the more flexible you are the better. We have never not been able to book a vacation. Many times we have booked less than 7 months out including Holidays. We will sometimes do a split stay 3 or 4 days at 1 location and 3 or 4 at another. We will waitlist but have a firm reservation somewhere. We have stayed at BLT, BWV, BCV, Saratoga, OKW, and for Easter will be at GFV (split stay).
While BLT Park view is great so is Lake view. You will be vacationing many more times so don't sweat it if you don't get exactly what you want on this trip!
Enjoy