Why the big fuss, TS will never replace QS coz, QS is not an International Standard, it is a Specific Qustomer requirement (Big3) internationally accepted and adopted. TS on the other hand, is an International standard registed by the International Organisation of Standardisaton (ISO) although it was not originated from them. That is why the standard was named ISO/TS 16949
Big 3 will still qualified their supplier based on QS requirement but they recognized TS if the supplier have one.