Regardless of the rumors, it seems fairly likely from a marketing perspective that Bethesda may consider providing a voice for the player character. Voice protagonists may sell better, with a greater appeal to the masses, meaning that it's entirely possible that because that would choose to do this at some point.

Anyone who knows Bethesda knows that their philosophy in producing games is to allow the player to "be who they want to be, and do what they want to do". Giving the player a predetermined voice significantly diminishes this quality. When the player spends time creating a character, whether or not they realize it, they have a specific dialect and personality and mind. When a generic predetermined voice stigmatizes the Player character, it largely conflicts with and disrupts the players concept of the character which they are trying to role-play.

From a marketing perspective, games like mass effect which attempt to combine a character creation system with predetermined voices have had plenty of success, meaning implementing voice actors for player characters would be a tactical move for appealing to a broader audience. However, from a role-playing perspective, I'm sure I'm not the only Bethesda fan who was majorly off put by this style of RPG when I heard my character speak, and it sounded nothing like I imagined. Upon trying to create a Samuel L Jackson character type, The voice of Cmdr. Shepard completely destroyed my attempt at role-playing my character.

This is not to put down games like mass effect, but rather to point out the difference between the two types of games, and why silent protagonists are necessary for an open world RPG like fallout. In mass effect, while you have a character creation system, you're Identity remains as Shepherd. Fallout on the other hand does not work this way.

As fans, we replay the game countless times, because it allows us to have vastly different experiences as we role-play vastly different characters each time. To provide a voice would be to provide a personality and dialect which cannot be opted out of, meaning each play through would be a variant of the same character, as opposed to before, wherein each play through the player character would potentially be completely different from the last.

At the end of the day, giving the player character a predetermined voice is just a major limit on player customization. Why not leave more to the player's imagination? To think that the protagonist must be voiced is sort of insulting to players. It's as if to say that we can't use our imagination, and furthermore that we wouldn't prefer to be who we want to be, rather than the character the Bethesda wants us to be.

Of course, this is entirely theoretical. Bethesda has not officially said anything that indicates that intend to make the shift into voiced protagonists. Therefore, this is not a critique or an attack on Bethesda. Just an expression of a true fans opinion on the matter.

A voiced PC may sell better, but that's an awful lot of dialog that would have to be voice acted (and it would have to be done twice, for male and female PCs). That's a lot of money Bethesda would have to pay for voice acting, and that many sound files would take up a huge amount of HDD space. I personally think Bethesda would stay away from a voiced PC for these reasons alone.

FWIW, I agree with you and much prefer a "silent" PC to a voiced one.

ETA - another issue would be voice acting for DLCs. When the game releases, they may not even know how many DLCs will be released, and would almost certainly not have them all finalized (including dialog) even if they did. If the voice actors who did the dialog for the main game were not available to come back in and record dialog for the DLCs, the transition between PC voices in the main game and the DLCs would be jarring, and would probably lead to lots of complaints from players.

if the MC gets a voice it should be like Saints Row IV. multiple voice options to match multiple character options

Absolutely agree with this. I thoroughly enjoyed Mass Effect's voiced player, but that's because it just happened to play into the type of character I wanted to be. For Fallout, Elder Scrolls, or other completely open character creation games, this wouldn't work. The amount of dialogue in these RPGs is far greater than what you see in a more streamlined story like Saints Row where you only hear it in cutscenes and taunts, etc. It's also more open about your character's personality and origins than Mass Effect or Dragon Age II, where you only have a few options about your past and characteristics.

In addition I feel like it would be really uncomfortable to have voiced dialogue in first person, but that' just me. I'm perfectly fine imagining my own tone and voice.