My answers in red:
New master bedroom and closet addition - existing master bath and closet combine into larger bath, existing master bedroom becomes office/den.
Existing circuits in bath:
New master bedroom and closet addition - existing master bath and closet combine into larger bath, existing master bedroom becomes office/den.
Existing circuits in bath:
- bath outlets - GFCI (existing, GFCI outlet in adjacent 2nd bathroom)
- As long as it is receptacles only in baths, existing is OK
- bath lighting - ? AFCI
- spa tub pump - ? GFCI
- spa tub heater - ? GFCI
- bedroom/closet outlets - ? AFCI
- bedroom/closet lighting - ? AFCI