The Airbus could probably do with some tweaks given the similarities between the two crashes.
In the AirAsia crash, the "dual input" warning was totally suppressed by the continuous "stall" warning (though there are both the green priority lights that indicate a dual input). A better system could be something like "stall stall stall dual input" repeated.
In the Air France crash, the stall warning ceased when airspeed reduced below 60kts (i think). This is believed to have led to more confusion with control inputs as it became counter intuitive in that pulling back more ceased the stall warning. Why would you have a system that at anytime in the air would cease a stall warning at very low speeds?