After the DVD and Blu-Ray release date for SCOOB! was announced to be July 21, then it was cancelled and pushed back to December 30, now it appears to have been pushed forward to July 21 again. This time, Target, Best Buy, and Amazon all list July 21 as the release date for the Blu-Ray and DVD date, with a pre-order button on all three pages, which leads me to believe that July 21 is indeed the correct date. No information regarding any special features has been released, though Amazon lists the run time as 135 minutes (which is 40 minutes longer than the movie actually is), so I imagine there will be some. The DVD will be available for $17.99, and the Blu-Ray available for $19.99.
Update: It is now also listed on Walmart.com and Target lists the special features as "How to Draw Scooby-Doo" for the DVD version, and for the Blu-Ray version, special features include how to draw Scooby-Doo, New Friends, Newer Villains, Puppies!!, Deleted Scenes, and Bloopers