I have no clue about the release date of the 'The Last Jedi' novel. Sometimes these dates can change, so it's hard to say for sure. Just stay tuned to reliable sources for the latest info.
I'm not sure exactly as I haven't read it in full. But generally, it might be about the story of the last Jedi in the Star Wars universe. It could include their adventures, their struggle against the dark side, and their journey to fulfill their Jedi duties.
The 'the last jedi junior novel' probably delves into the story of 'The Last Jedi' in a way that's more accessible for junior readers. It could include the adventures of Rey, Finn, and Poe, as well as their relationships and how they deal with the challenges of the First Order. Maybe it also explores the lore of the Force in a simpler manner for younger fans.
The story of Star Wars: The Last Jedi follows Rey as she continues her journey to understand the Force and her place in the galaxy. There's a lot of conflict and drama between the Resistance and the First Order.
It's an action-packed adventure set in the Star Wars universe. The Resistance is fighting against the First Order, and Rey seeks to learn the ways of the Force from Luke Skywalker.