I don’t think it’d be hard for Ady to get a voice actor to dub the one line. That’s a bit easier than recoloring his hair or a deepfake replacement.
Given how Dennis Lawson later did voiceover work for the Rogue Squadron games, I’m surprised he didn’t redub his ANH and ESB lines. Heck, said time would have been perfect to separate fake (using the original VA, who later appeared in R1) & real Wedge.