The Witcher 3: Wild Hunt is going to be huge and so seems to be the case for the planned DLC. 16 packs of downloadable content is planned for the game. Luckily there is no need to worry about being ripped off.
CD Projekt Red promised that all packs will be available on all platforms for free, and that you will not need to place a pre-order to get them.
The plan is to release a new DLC bundle (each bundle contains two DLCs) on a weekly basis, following the game's launch February 24th, 2015. The first DLC bundle will be released the next day on February 25th.
The next bundle will be available for download a week after that, on March 4th, the next on March 11th, and so on. The first bundle will contain the Temerian Armor Set and a Beard and Hairstyle Set for Geralt. The second bundle will contain an additional quest and an alternative look for one of the game's main characters -- Yennefer of Vengerberg.
The Witcher 3: Wild Hunt is scheduled to launch February 24th, 2015, on Xbox One, PC, and PlayStation 4.