Tintin is notable in that the series was not continued by other artists after the desth of Hergé. While the estate is critized for guarding the IP too zealously, I greatly respect this decision, which is part of what makes it such a classic.
Maybe not in the official series, though I’d love to see Al-far one finished by someone. But as far as tintin, there may not be official series, but there is a lot of new work based on it, from merch to the Spielberg movie, as bad as it was.
European comics are usually done by one artist only. I can’t explain why but it’s very different from American comics where the same concept (one character with a simple background) can be derived by a hundred people.
Both are good but I guess they come from a different background and tradition. You have Joachim Phoenix playing a joker without Batman, but people would never understand why a new Tintin would have a different art style than the old one. It would be very confusing even to me.