I'm not sure how the DLC's work with regard to modding. I am just reaching the end of mine and only really intended it to be for Skyrim not the DLC's. But I have DLC's installed on my game, and my quest fills the alias with locations in Solstheim which breaks my quest. So I've decided to add the Dragonborn DLC in creation kit so I can fill aliases from that location. However, if I do this will other people need Dragonborn to play my mod or can they play without it? The only effect its absence will have is that the quest won't choose areas from Solstheim.
Also is there any way of stopping the quest filling a location alias with Solstheim until dragonborn questline has started?