Yes. The FWL16 and FWL13 both have touchscreen pins on the motherboard display connector. Both i2c and usb.
But using those touchscreen pins yourself would be rather hard currently. Trouble is that there isn’t a standard for motherboard-side display connectors. So only the FW cable is compatable with the motherboard-side. But since the current screen isn’t touch, the display-side of the cable doesn’t have touch pins, there is no place for them on the non-touch connector. And I understand custom cables are prohibitively expensive for individuals to have made. So we effectively can’t access those motherboard-side touchscreen pins at a reasonable price. Someone could maybe find a touchscreen which uses usb for touch and feed it with usb from elsewhere.