✔ 最佳答案
I assume you are asking about the upcoming "Extended Cut" DLC scheduled for Summer release.
Bioware emphasized that the "Extended Cut" DLC will not change the current ending. It will just explain the ending, give players more closure.
So, if your Shepard survived/died in your current ending, he/she will still do so with the "Extended Cut" DLC.
(And you know Shepard can survive even in the current endings, right?)