Hibbits/FrancisLawrence tweets "Going to do color with Rodrigo and then gonna finish ADR for Jacob. Getting closer..."
Looks like there's no rest for Rob even in his short break from Breaking Dawn. Water for Elephants' interviews, ADR... It can be ADR for old Jacob, but since Rob is in LA right now, it might be for young Jacob.
Rodrigo Prieto is WFE cinematographer.
Again, ADR is automated dialogue replacement or 'dubbing'.