2. Who will be audited for areas covered by erstwhile MR?
Thee fact that the management representative is no longer a mandatory role doesn't mean that it is forbidden. If the organization finds management representative as an important role for its QMS, it can keep it. What areas or what persons will be audited in case when there is no management representative will depend on how the organization assigned roles and responsibilities, but it is usually quality department or quality manag er, who will take charge and be audited. For more information, see: What will be the destiny of the management representative in the new ISO 9001:2015? https://advisera.com/9001academy/knowledgebase/what-will-be-the-destiny-of-the-management-representative-in-the-new-iso-90012015/
3. Who shall make plans for internal audits - i.e. whose responsibility will it be?
4. What shall be the responsibilities and authorities of person(s) replacing MR/
The above are some of the doubts I have. Some of my clients are in the process of transition to ISO 9001 2015 and TS 16949 2016,
Besides requirements of ISO 9001:2015 regarding roles and responsibilities that include ensuring compliance of the QMS with the standard, effectiveness of the processes, reporting on the performances of the QMS to the top management and promoting continual improvement, IATF 16949 has additional requirements to define roles and responsibilities for meeting customer requirements, ensuring conformity of products and services and initiating and enforcing corrective actions.
All these roles and responsibilities don't have to assigned to one person, but can be spread to several persons so they don't become too big burden.