So a popular rumour seems to suggest that our Vault Dweller will have a voice of their own with which to converse with the denizens of the Wasteland, however given what I know about the Bethesda Fallout/Elder Scrolls fanbase I would have thought that such a thing would not be so welcome given their appreciation of the power of imagination and blank slate characters that allow them to fill in the gaps.
Honestly curious, is a voiced protagonist something you would want?
There are also rumours that you wont be able to choose your character's gender but such rumours seem a little far fetched even if the source has been right about most things so far.