Dragon Age: Inquisition is a rather large game and Bioware has plans to continue supplying DLC for it, but only on PC, PS4, and Xbox One. If you bought the last generation edition of the third entry to the series then you may be disappointed to learn they will no longer be supported with future DLC. However, if you want to upgrade to the new generation of consoles and continue playing then you can import your save.
The instructions on how to do so are located on this page, and includes details on how to import/export both single player and multiplayer progress. You won’t be able to import data across console families, so no starting on Xbox 360 then continuing on PS4 if you were thinking of doing that. There also is no option import or export data from the PC version of the game. The ability to import and export will be available with the release of patch 8.
Source: Dragon Age