Can't say I'm happy about the developments. Looks like Boeing has now redefined what a "thermal runaway" is, and, like magic, therefore a thermal runaway never happened.
From FlightGobal
Boeing details 787 battery redesign, rebuts safety claims:
In Boeing's view, neither incident met the company's internal definition for the condition called "thermal runaway". That is a situation in which there "is so much energy, so much heat and so much flame that it would put the airplane at risk", Sinnett says. "We know very clearly this was not the case in the Logan event and the Takamatsu event."