the feed will be thru the IFE systems, forget anything single source, it will not evolve.
looking at the recent incidents, the 'black box' system has not performed, and most have been damaged where significant repair has been required and data lost., or as with MH370, the entire ac is lost.
It is obvious that the current system simply does ot work, and had been reliant on statistical data that supposed ac really do not catastrophically crash, nor land in water..as they say "Fix It".
Military ac has a system that ejects, likely as a lesson learned.
Aside from that, the data rates through the IFE systems are a significant evolution in many respects, and are already in use.
Much of the article appears to be an IMMARSAT advertisement.