Board Thread:Manga/@comment-151.231.104.172-20150824001325/@comment-4929778-20160204042726

Actually it's already been posted that RB let her go so she could either be hiding outside of the walls or inside the walls in a new identity (I mean they don't have photos so how would people know what she looks like, considering as how she is basically a criminal for capturing historia and helping RB escape).

Whatever the reason they let her go we aren't sure. It could be because they had to face the beast Titan and she would get in the way (or they cared about her) or it could be because they were grateful for helping them escape so in exchange they let her go. remember that according to Ymir the Shifters will likely find her wherever she goes. So possibility she could still be hiding.

Considering as how we got a flashback to historia about her it's been pretty much confirmed that Haijime is leading us in the right direction.