In D&D 3.x, the core books stated that the default setting was Greyhawk and the first few adventures were set in it (e.g. The Sunless Citadel, Return to the Temple of Elemental Evil).

In D&D 4e, the core books stated that the default setting was Points of Light and the first few adventures were set in it (e.g. Keep on the Shadowfell, Pyramid of Shadows).

The D&D 5th Edition Starter Set includes a scenario called "Lost Mines of Phandelver" and the first adventures will be [Hoard of the Dragon Queen][1] and [The Rise of Tiamat][2], all of which take place in Forgotten Realms. Is Wizards continuing the pattern, thus Forgotten Realms has become the default setting for 5th Edition? Or have they indicated elsewhere that Forgotten Realms will not be the default setting, despite the adventures?


  [1]: http://www.wizards.com/dnd/Product.aspx?x=dnd/products/dndacc/hoarddragonqueen
  [2]: http://www.wizards.com/dnd/Product.aspx?x=dnd/products/dndacc/risetiamat