Just wondering with what is happening with Demacia right now, would Vayne actually come back and help? Like I know she is out hunting evil magic but I wonder if a full blown war between let's say Noxus happened, would she join Demacia's forces, or is she just kinda on her own and Demacia is more of just where she was born.
Vayne has been established as more egotistical than an average Demacian. While 
and Mageseekers cover everything they do by claiming its their duty, Vayne openly admits that she kills monsters, demons, and dark mages because she enjoys killing them. So, she is obviously not driven by the duty to her country. Probably, she even has a chip on her shoulder because Demacia let her down a lot: 1) 
found her way through the supposedly magic-proof Demacian walls, 2) People refused to believe Vayne that it was a demon who killed her family because they didn't want to admit that Demacia is not so safe as they thought, so she had to seek help elsewhere.
