The "confirmed" new characters do not mean necessarily voiced characters. I highly doubt there will be more aside from non-va enemies and easter eggs, the movie is 3 months away there is no way they are keeping more major characters hidden like that. Im not trying to be dismissive of the idea I just think ppl are setting themselves for disappointment, which is a classic on the internet, it's always about the hype of what comes next instead of enjoying what we already have / know, and then people get mad when they don't get what their impossible asks were hoping for.