So I just finished Empire's End.
The Battle of Jahhu was probably the highlight of the book, but I was rather disappointed in the entire mystery of Jakku. The whole thing was just a map to the outer reaches, plus a bomb? And how was blowing up a planet supposed to destroy the entire New Republic fleet anyway? Wouldn't someone on the ground radio to the fleet that the planet was starting to fall apart? Anyhow the whole map thing was silly. Such an intense level of security for charting the stars? Like ANYONE would have assumed a map of the galaxy meant that Palpatine planned to kill everyone in the Empire.
But what REALLY gets me is that this whole trilogy was effectively "The Birth of the First Order". And the reason that makes me angry, is because we already saw that in Bloodline. Granted Bloodline approached it from a different angle, but it leads you to believe that the first order was being formed in the main galaxy, while this says they were forming the first order outside the galaxy. I'm sure there's a way for them to explain it away, but it's really annoying having multiple stories contradict each other. Reminds me of the original trilogy ideals that were contradicted by the prequels... (Obi Wan: When I met your father I was AMAZED at how the force flowed through him so I took it upon myself to train him).
Cool thing though -
The Eclipse. This is probably the best little tidbit in the book. They sent it early. They didn't say HOW early. But it's clear the Eclipse has been missing for years. You know who ALSO has been missing for years? Thrawn. It SEEMS like Thrawn is commanding the Eclipse and ends up being a founding member of the 1st order. That's my theory. Going to do a video on it soon actually.