It appears that the FAA's re-certification of the lithium ion batteries is getting closer. First, Transportation Secretary Ray LaHood said today that the approval will happen "soon" though the FAA isn't going to be rushed in its analysis of Boeing's data.
Another piece of news that indicates the decision is right over the horizon is an article from a local Ethiopian news website saying that Ethiopian's 787s will be the first airlines to return to service though I do suspect that this is more hopeful thinking as Boeing will focus on getting ANA's fleet back up in the air first. The article doesn't say when Ethiopian will resume flying though and it is up to each individual carrier when they will resume revenue service once their 787s are modified.
Nevertheless, it does give more of an indication of the trend in the belief that this grounding will very soon be over.