Paraphrasing and brevity aside, in this case, we are talking about banking the points into the WP system in the last 60 days of the Use Year and thus extending their effective use beyond the normal expiration.
In addition, the need to bank a confirmed reservation is no longer in effect as there is a set chart for the points required for exchanges thru II. Instead of having to make and bank a reservation at your home or other DVC resort - all members must do at this time is provide the number of points needed for the villa size and season desired (1BR villas range from 124-160 points for a full week and 2BR villas range from 207-270 for the same period of time). DVC will be responsible for actually making the DVC reservation using those points. thus the reference to "no more than 11 months (7 if .......other than ...Home Resort, is a throwback to the previous method of using the WP Collection. By using the BVTC, even single night reservations may be made.
In this case, if the points are banked within 59 days of the end of the Use Year (thereby limiting DVC's ability to make a reservation with those points to that same time period), the requested stay must also be made within that timeframe as Dean notes - regardless when you make the request during the 2 year use period. In that respect, it's a little like using "Holding Account" points - but the point here is that the member will be able to extend the use of these points beyond their normal life. Hawaii or any other high-demand location may be out of reach with those time constraints.
Before depending on DVC to transfer the banking of such points into the WP by the seller, I'd sure want to be assured that the buyer will get the use of that transaction - whether it's written into the offer or not. It might be allowed by DVC ... or not. In light of DVC's usual policy to cancel any existing reservations, this may not be allowed anyway even if the seller deposits these points with WP tomorrow.
Good luck!