Hey folks,
thread isn’t the ideal location to discuss DLC, but there is some information available about the plans and handling of DLC : https://answers.unrealengine/questions/206824/patch-and-dlc-support.html (note, you may need to click a + symbol on one of the comments to see its response)
The information was originally written in January so some aspects may be changed now.
If you want to continue the DLC discussion, please begin a new forum thread, or post specific questions on the AnswerHub.
Cheers