content: They will definitely retrofit some aircraft with glass. They already add a tablet to the EFB for checklists and pilot convenience. So glass is now the standard and maintaining the old systems is expensive. Also many of those control consoles require heavy and expensive 'head end' units in the EE bay that you don't see. If you take into account weight/fuel savings for the remaining life of the aircraft, and the shedding of old maintenance for instrumentation and control systems that have been deprecated and require specialists from a small pool to service - retrofit becomes attractive. Because cockpit instrumentation remains very standard compared to other systems on an aircraft across an entire platform - glass retrofits can be standardized and the STC process can be cookie cutter. The FAA will also ease some of the rules due to the data presented in the article suggesting that glass is safer. They will never hang their asses out for voluntary cost-saving retrofits unless they can protect themselves with the fact that the intent was to increase safety.