Yes the MOT stations have had to buy a test rig for those!The test to the new 13 pin towing electrics will most likely require an expensive box of tricks to test quickly as they have power supply for caravans as well as lights.
Re the headlight washers, it may only apply to cars with HID, so probably not a problem on your "D" reg Volvo. Things will become clearer as the year goes on.