You know how sometimes a series has overstayed its welcome? How, even though the author has wrapped up most of the loose ends, there's another story afterward that only exists to extend the series even farther than it has already come? The only times I can forgive these extensions is if the story in question isn't particularly long. For instance, the "epilogue" story in Marissa Meyer's Stars Above is a great way to show the characters settling into normal life after the main conflict ends. Shadows in Flight is almost unnecessary, but at least it's short.
Shadow of the Giant was a satisfying conclusion to the Ender's Shadow saga, so the fact that Shadows in Flight exists is merely to wrap up Bean's story even if the rest of the world had already reached its peaceful conclusion. After all, one question remained from this series: can those with Anton's Key be cured of their premature death and still keep their incredible gifts? This story sets out to answer that question and give Bean the (second) send-off he deserved. Fortunately, it's a relatively short book, since there isn't much else to say on the matter.
The problem is, there's nothing particularly new in this book when compared to the other eight books in both the Speaker for the Dead and Ender's Shadow series. This is perhaps because the three new characters (Bean's children) were repeated archetypes from their respective namesakes. It's always nice to have a little more content in the Ender universe, but even I think this feels like a post-it note scribbled on the back of the end of the series.
Wrapping up the final loose ends of the Ender's Shadow saga, I give Shadows in Flight 3.0 stars out of 5.