The one thing that Caroll himself has said is that he intends to keep doing it until he physically can no longer hold Big Bird's head up.
However, it seems from the little bit of behind-the-scenes footage we've gotten of Season 46 thus far is that Caroll is apparently just sitting off to the sidelines, dubbing his characters voices like Jerry did in his last few years.
However, it seems from the little bit of behind-the-scenes footage we've gotten of Season 46 thus far is that Caroll is apparently just sitting off to the sidelines, dubbing his characters voices like Jerry did in his last few years.