if you do not want to travel just to WSJ, you will get better advice if you post your preferences: time of the year you can travel, annual budget, number of people, condo size etc. Buy resale, you are going to save a ton. IMO a combination of voluntary for where you want to go and mandatory for flexibility might be good idea. You may also want to consider a Vistana or Marriott "trader", a week that has low maintenece fees but good trading power in Interval international. Again, if you do not want just WSJ and especially if you have some flexibility in terms of season.
Concerning the availability, try not to think short term since buying a timeshare is a long term commitment. Other resorts will re-open in the area. Also, it is harder now for Vistana owners to book with Staroptions WSJ (but not impossible) because the resort just re-opened. It is still partially under construction not to mention people waited for few years to go back to their resort so they are not going to deposit their condo to go somewhere else. I am a relatively new Vistana owner so i cannot tell you for sure but my sense is telling me that it is harder to book with Staroptions now than it was say five years ago, before the hurricane. Probably things will stabilize in a couple of years and the availability will go back to where it was before.