Board Thread:Questions and Answers/@comment-32129965-20170528031352/@comment-29752445-20170528145210

First of all, he may have said that but he can always change things along the way.

Mikasa is obviously want to be with Eren, it's maybe Eren who doesn't see her the same way, but again, the author can always change things over time, it's not like any idea is fixed.

besides that, I don't really see any potential person to be with mikasa because she barely had any interaction with another male characters or showed any sort of emotion towards anyone but Eren, but maybe Jean I guess? since he's interested in her and he did save her once in the manga.

now I don't know if you read the manga or not, but there is another reason why Eren and Mikasa cannot be together at the end of the manga.