Despite its extremely low probability the GermanWings crash was the instantiation of the greatest fear of many pax. Knowing that you are about to die for several minutes and not being able to do anything about it.
Out of the woodwork come the geeks and avionics manufacturers seeing a large market open up
http://www.nytimes.com/2015/04/07/sc...lots.html?_r=0
These ideas will be proceeded with if the industry does not have a defined and non-cosmetic response.