Short ver: no.
If you want a look at the de-evolution of concept art over the last decade or so, then okay you'll see where we've headed; you'll also catch a few glimpses as to where the current crap video game art 'aesthetic' has overreached its bounds. And with 30+ artists on the film, plenty of insight to the in-bred culture that pervades the discipline these days.
One or two stand-out artists, but they aren't concept guys and their works reflect that. In all, wait til it hits the bargain tables, and if by then you give it any thought or are a completist etc....
THIS ^^^^ is the best review I have seen about the TFA art book. I ordered it from England since the prices were already skyrocketing, similar to the first Iron Man art book.
While I do like quite a few of the graphics and the costume designs, I found the way they presented the designs a bit off. What I love about the older books is the documentation of the creative process, e.g. how Vader and Yoda were developed. The results are presented, but how they were achieved, what creative decisions were made is IMO missing.
Instead they chose to present us with a timeline of the developments, something that we usually get with the Rinzler books.
And then there is the concept art that seems to be missing, paintings and visuals that we saw in spoiler threads before.
The designs themselves are indeed showing how "inbred" some of the artists are thinking. I must say that the prequel designs already made me feel that way about the designers qualities. Everything seemed very repetitive and self-referencing, cool contemporary designs instead of something innovative.
The quality that Joe Johnston, John Barry, Ralph McQuarrie brought with them, the freshness of combining real world experience and knowledge about how things are built and how stuff works or actually may work or react to its environment seemd to be missing. I felt this to some extent in TFA, although not as clearly visible as in the PT.
The new design crew can draw and paint, but IMO they lack the real-world background. Game designs, yes.
The new trooper costumes stand out, and reading how the costume designer mentioned the influence of Apple´s designs made my heart sink a bit. While the environments are grim and gritty, the trooper costumes IMO lack the subtle terror that an OT stormtrooper conveyed with its skull-like helmet. The flame trooper and snow trooper with its soft features is even worse.
Some of the ship designs in the book made me wonder if they probably were rejects from other movies. The bubble ship in the book reminded me of the Oblivion ship a tad too much.
But I digress. At a price point of 24,95 USD I can recommend the book to erveryone who wants to look at contemporary graphics design. I enjoyed it, but not as much as I still enjoy the OT art books.