Nothing will happen until we have a full 738/A319 planted in a hillside somewhere DUE TO fatigue. That is quite simply the rub. Until then necks will be buried deeply. The finger pointing blame-game after the fact will be unparalleled.
My guess is that we'll need a couple of 'em because hull loss number one and hull loss number two will be concluded with "pilot error". Not what led to said error of course. Nothing about the crew's personal circumstances leading up to the event. Nah. Just "pilot error" floating dreamily in the air high above the brussels bureaucrats as they sit down to another taxpayer-funded lunch, deciding how long we need to work for them to keep enjoying it.
Perhaps a global union is just the ticket. Until the leaders of it too cozy up to the fat cats to sell out their proteges for a slice of free.