For all of the WDW
DVC resorts, it looks like there were no changes for 2012 (compared to 2011) except for the date changes for Thanksgiving and Easter. For 2012 November 21-23 will be Magic Season instead of Choice and April 1-14 will be in Premier Season instead of Magic. Other than those two changes, it appears that all other dates remain the same as they are in 2011.
HH had no changes at all. VB had minor date changes to reflect Thanksgiving and their Spring Break/Easter busy time for Premier Season. The GCV appears to have some other minor date modifications throughout the year.
Here is a direct link to the BWV chart without the need to go thru the Member site -
2012 BWV point chart. I hope your computer will allow access to that site!