A qualifier: I've been reading Raymond E. Feist for roughly 30 years now. He's been one of my favorite authors for decades, and the following pains me to write. So, some of this will touch on the previous book in this series. Consider this a review of the series as much as this book.
There may be spoilers...
A vignette of observations:
* So, we have a blacksmith with a teamster/wagon driver friend who turns out to be the bastard son of a noble. This seems vaguely familiar. Declan isn't an anagram of Erik surprisingly.
* A strange people from a mysterious continent on the other side of the world raids the main characters' home, killing some people, burning some things, and taking hostages away. At least in this case a stern chase doesn't end up being a long chase. Nicky, has anyone seen Nicky?
* A redheaded character with mysterious power around which the story is written is a inn keeper in some backwater town with a side kick who is more than what they seem. Well, I'm glad Feist is a fan of Rothfuss too.
There's a few other things, but you get the idea. I don't think any of these things come anywhere close to plagiarism (including self-plagiarism). Perhaps the author meant them as a head nod, or even homage, but it comes across as recycling.
On to the technical issues:
Like other Feist books, this one suffers from some poor editing. Not as bad as early editions of a couple of the Midkemia novels, but Feist needs a new editor and proof reader. In this case there are closing quotations marks (but no opening marks) around things that are not dialogue and a couple nonsensical sentences, and all the other normal problems. There are also some bad examples of recapping/exposition in dialogue where a character will incorrectly tell what happened in the first book. It could be easy to write this off as an unreliable narrator, but the entire purpose of it is to remind the reader/ tie in to the first book, so if that was the goal, then it was poorly done. It is done like bad television. My female friends, even those who love the Riftwar novels, complain that Feist writes one dimensional women. I'm starting to agree. While he writes some strong female characters, they are still paper thin. In the case of this book, the only female character to get much POV treatment is okay, but then at the very end of the book acts completely out of character to perform a classic trope of women in poorly written television.
Finally, Feist has fallen in the habit of overusing/misusing some words and terms. Everyone in this book comments on things ruefully, even when it is clear that it doesn't exactly apply. There are others, but I'm afraid if I call them all out that is all you will see.
If you can get past those things, there's some really good story in there. Feist has phoned in some of this, but there's enough here to show he still remembers good story. It is also a new world and it is exciting to see what that new world looks like. That being said, I wish he would stop trying to write epic fantasy and just write a good solid story. Not every continent has to burn for a good story to occur. Feist writes interesting characters, and I believe he can have them complete interesting arcs without the entire world being at stake.