I am thinking Boeing and the FAA would like all aircraft back flying the 180 soon as possible with all the airlines together.
But I think some airlines may elect not to use the full 180 in the short/medium term.
I hope no 787 battery ever fails in any mode again and the heavy boxes can be removed in the future at some time.
But, with press reports often saying batts are not used in the air and only for ground use, plus the story of 100/150 batts being replaced in service life upto the events in Jan13, I will not be surprised if the batt story is over just yet.