You can post them any time. I actually rented some of my 2015 points a few months ago.
I'm looking for 2015 points. I plan to bank my 2014 points, combine with 2015 points to get a 2 bedroom villa in June 2015. So can I rent some points from you, then do I call in June 2014 to try to get a villa for June 2015 using my trust points and the rented points? How would I know how much to rent (up to 1,000 points) since most Hawaii places except Waiohai are over 5,000 points for a week?