The latest news seems to be that the NTSB announced (rather quietly, it would appear) it will not hold public hearings on the crash. Supposedly they will release major documents (including the CVR transcript) early next year and could rule on probable cause by spring.
Source:
Louisville Courier-Journal
I can understand that the NTSB wouldn't conduct public hearings for every investigation, but doesn't it seem a bit odd to omit such a step in a high-profile event such as this?