I have no idea, but it appears each case is different and theres no real official policy... question is - what if you are using banked points and they are about to expire (i/e 2018 points, October UY banked into 2019)? Will they allow a member to somehow bank them a SECOND time into the next year?
No, for Irma last time they allowed to bank over the banking deadline and un-borrow points, however they didn't allow to bank twice and points were lost. That's why in preparation for my trip in September I've rented a few banked points so I could have a few current year points in my reservation, n case I had to arrive late or leave early due to a hurricane.
I should arrive in Orlando tomorrow, hopefully Dorian will deviate and stay away from Florida.