If enough money goes into stem cell research (more money = more researchers and resources), I'd say it's possible cuz the hair cells, and nerves can be revived. So don't give up hope just yet. ^_^
As much as I hate to say this I have to agree with Dan, I really had hope on Autifony as it sounded so promising, now with that being a failure im out of belief that they would come up with something now.