007, Star Wars, and Star Trek movies, novels, and comics were able to produce sequels mainly because these works had a deep historical and cultural background, as well as a strong fan base, allowing the plot and characters of the works to continue and expand.
The original works of these works all had complex worldviews and plots. The continuous addition of new plots and characters could make the story more colorful and attract more audiences. At the same time, the creative team of these works could also constantly excavate and create new characters and characters to make the story more interesting and fascinating.
In contrast, although the Harry Potter series was also very popular, its story background and worldview were relatively simple, and the image of Harry Potter himself was relatively fixed. Therefore, it was difficult for the creative team to constantly introduce new plots and characters, resulting in a lack of continuity in the story. At the same time, the Harry Potter series also had some copyright and intellectual property issues, making it difficult for the creative team to freely create and sequels.
The end of Harry Potter was due to the author JK Rowling not continuing the series, but she once said that she would create a final ending for the series.
The author of the Star Wars and Star Trek series, George R.R. Martin, did not announce the final ending of the series, so he has been writing sequels and derivative works.
The personal story of James Bond, the author of the 007 series, and the worldview of the Bond series had many complicated plots and details, so it was difficult to have a certain final ending. Therefore, there were sequels and derivative works in the Bond series.
It means that some viewers think the Star Wars sequels have elements that seem like they were created by fans rather than having a consistent, original vision. For example, the storylines might seem to borrow from common fan theories or ideas that circulate in the Star Wars fan community.
If we're talking about 'Solo: A Star Wars Story', it was a good addition. It gave fans a chance to see a different side of the Star Wars universe. We got to see how Han Solo met Chewbacca and Lando Calrissian, which are important relationships in the overall Star Wars story. The movie also had some great set pieces and a fun adventure - filled plot that fit well within the Star Wars aesthetic.
I'd say it's a mixed bag. Some fans love the Star Wars novels for their rich character development and exciting adventures, but for others, they might not hit the mark. It all comes down to personal taste.
Star Wars novels have their charm. They provide fans with more adventures in that universe. However, not all of them are equally compelling; it really comes down to personal preferences and expectations.