In DRI you can transfer your Points forward 1 year. If you transfer all your Points forward and then end of making a Reservation in their original year they pull back just the number of Points you need.
Worldmark Points are good for about 25 months. WM Points are deposited on the first day of your anniversary month. Then they are good until the last day of your anniversary month 2 years later. So about 25 months. Without charge. So Points deposited on August 1, 2021 are good for future Bookings until August 31, 2023. They can be Booked out 13 months. So Points expiring on August 31, 2023 can be Booked into a Reservation in September 2024. Same for House Keeping Tokens. Also you can borrow Points and House Keeping Tokens without charge. So if you work it correctly there is an approximate 30 day period of time you can use 4 years worth of Points.