A long time back I suggested having the main character be fully voiced and a moderator said they are planning on doing that and I have found some parts in the game where your character really does talk and it was amazing... But, as I have thought about it. I think it be a cool idea to keep much of the game as it is now then have key moments in the game where your character does talk, but make them less random and more important. Like have them happen during important moments of the overall story. As a way to give a subtle nod to the player that says, "Hey, this is important. You should probably try and remember this." Nudge, nudge, wink, wink.