The 18-year-old Austrian is craving a move away from England, preferably closer to home.
His father, Ivica Vastic, told the Austrian press: "His move to Munich is just a formality.
"There is an interest from both sides but then again it is true that nothing has been signed so far.
"Bayern called Tony to come to Munich but we will have to wait some days. But soon everything could be sorted out."