LEGO 5004810 Scooby-Doo Collection is currently on sale at LEGO Shop at Home North America (USA | Canada) . The collection includes three sets which are 75900 Mummy Museum Mystery, 75902 The Mystery Machine and 75904 Mystery Mansion. To get your order in before Christmas, you need to place your order by Tuesday, December 22nd with Express Shipping.
Thanks to forum members lordoflego and payam81 for the news.