You know, I can defintely see her story picking up tremendously in DOA6. Especially if they play the political card right with Tina and Bass... a little DOATEC infiltration from M.I.S.T. here, a little push from Rig to get Bass into politics there, Bass gets made out to be the bad guy, Mila becomes disappointed, meets friends with similar stories on people they look up to (Hitomi, Eliot, Leifang, etc), finds resolve, blah, blah, blah...
I don't know exactly how it could work logically as this was just off the top of my head, but I have a gut feeling this could develop her character quite a bit.