No one really knows what will happen, prices could tank, prices could keep going up. If you're ready to sell or buy, it's best to just go ahead and do whatever since we can't predict the future. I personally would list with a delayed closing like others have mentioned.
If you have multiple contracts and some reservations, ensure that the point count for the contract you list is accurate. I bought from one couple with multiple contracts that was confused about what points were in what contract. Hence they listed with full points in a current use year on the listing and contract, and when I got it it had only half the points. So they had to make good on reimbursing me for those points, or I had the option of cancelling and receiving a full refund. They were nice people, and since it had extra banked points also not listed, we worked out a compromise between me, them and the broker that saved us all some money (they reimbursed me for the dues on the missing points, and the broker made a free reservation for me). Best to avoid that if possible.