navindra the November recital runs on a regular schedule without a specific piece to play. Many started already working even without the remainder, and some have already finished the piece. Sam kept to post a reminder 15 days before opening submissions to keep the forum alive. And to remind those that would probably have forgotten to record something. Still 30 days left.
For PIYW, people need to know what to learn. It is unlikely that someone has a repetoire so big that the chosen piece only needs a short freshup. PIYW needs some more practice time, before.
Just remember Canon in D PIYW: it was announced only 30 days earlier (same day when the quartely went live) and for one pianist, this wasn't enough time to learn and polish until the PIYW went live.