Definitely you should plan on going! The port calls may change somewhat, but remember, many of these islands and ports depend on tourism for their main income, so they will do whatever they can to be "up and running" as soon as possible. And your visitor dollars will help them out as well.
With several months before you plan to travel, the cruise lines will be able to keep informed on how restoration of visitor facilities is going, and if necessary may substitute a different port here & there. In any case, you will have plenty to enjoy, both onboard ship and in the ports of call.