The stark separation of Physics from Metaphysics always seemed a bit odd to me: considering that Metaphysics is "beyond Physics", there should be a bridge between the two, so that there can always be information shared about what belongs to who, and where that boundary is.
Also, at some point, Physics is going to either only be left with, or begin approaching unintentionally, problems that have traditionally been considered the realm of Metaphysics, and the chasm between the two will only make this more frustrating.
In fact, with regards to Quantum Mechanics, Physics is already there, with questions about the fundamental nature of time andSpace- it would be foolish not to interact with the field built upon people who think and have thought deeply about these very questions.