Yes, rollovers will continue this year. Any amount of nights you spend between an elite category (say between silver and gold or gold and platinum will be rolled over for 2011 -- but not as some recent questions have asked to the year after). For example, if you stayed 59 nights you would get or maintain gold status and roll over 9 nights to 2012. ProfChiara
I haven't received "rollover" nights from 2010 to 2011 nor did I receive credit for "nights stay" at a late December Marriott Vacation Club stay. I've sent in the form for missing stay stating I received my points but not the night credits over 10 days ago and nothing has changed.