A complete voice-over including full dialogue for player characters is extremely unlikely because of the indirect dialogue used by the game. (Changing every single dialogue option in the game from indirect to origin-specific would massively increase the amount of dialogue needed to be written and exponentially increase the cost for voice-acting.)

And I really really hope that there is absolutely ZERO voice acting for repetitive dialogue loops. Those were godawful and immersion-BREAKING in D:OS 1.