Looks like Avago has LTE band 7 covered with the A5007 device. Just above the SKY77737 and to the left of the EPCOS WLAN/BT filters
Confirmed, the WTR1605L is just to the right of the Toshiba memory, above the NXP NFC and TI MCU devices.
The GPS is likely integrated with the RF transceiver, but this device was not called out on the logic board. It is likely the WTR1605 part, given the other QCOM silicon contained within.