The Lion King is not entirely an original story. It takes inspiration from various sources and incorporates elements from different tales and folklore.
One major difference is the visual description in the 2019 novel. It might offer more detailed descriptions of the Pride Lands, like the unique features of different areas within it. Also, the character development in the novel could be more in - depth. For example, Simba's internal struggle might be explored more thoroughly through the written word compared to the original story which was more shown through animation.
One of the main themes is the circle of life. It shows how all living things are interconnected and depend on each other. Another theme is coming of age, as Simba has to grow up and face his responsibilities.
The 2019 version of Lion King has the same story as the classic one. Firstly, it maintains the key events such as Simba's father Mufasa's death which is a very crucial part of the story. Then, Simba's self - discovery during his time away from the Pridelands is also the same. Also, the final showdown between Simba and Scar to take back the throne for the good of the Pridelands and its inhabitants remains unchanged. The movie stays true to the original story's essence.
The new Lion King isn't a carbon copy. It takes the core story and gives it a fresh twist with updated visuals and perhaps a slightly altered narrative approach.
Timon and Pumbaa are quite memorable. They add a lot of humor to the story with their carefree attitude. Scar is also very memorable as the villain, with his devious plans and evil nature.
Yes, there are actually some Lion King-inspired novel series available. They offer different takes and expanded storylines based on the popular franchise.