So.... she´s a detective, not a professor.
Definetely the story will follow different approachs.... instead of investigating old temples, artifacts, civilizations.... this time we will be investigating crimes.
I´d bet she is Hershel´s daughter.
I don´t see problems with the games launching on both 3ds and mobile. If they´re the same price, it will be ok. It expands the audience for the franchise.