IF they call for any type of impact on late Sunday/Monday (timing?), we will more than likely know something regarding evacuations on Saturday. For Matthew, which hit late Thursday-Friday, we were asked to vacate our cabin on Wednesday and mandatory by noon Thursday. Guests were sent to AoA. Also, from what I remember, guests that needed room extensions were accomodated at discounted rates.
Now, saying all that, I'd wait and see where they may/may not send you.
Btw, we will be there, as well...checking in this Friday. I sure know how to pick em'