The 400 wing is different to the classic - it's not just had winglets added. The span of the 400 is 11' longer, the profiles are different, it has many carbon panels, different wing root fillets, diffrent tank volumes, different ailerons, different flap schedules and the flaps and spoilers are fly by wire. I've flown both and the handling is different.
The JAL ANA 400Ds do have 400 wings, the just don't have the winglets which are only beneficial in the cruise - a stage of flight the 400Ds rarely achieve.