User blog comment:Icy44266/Will thane be cured in ME3?/@comment-1746153-20110104130736

I wouldn't want a magical cure for him, too, however, seeing how they at BioWare listen to their fans (and many fans want him cured, I guess), they might add some (optional) mission in which you can get a cure, somehow. I remember a mention that the hanar are working on it.