The book is already in some people's possession a few days before it reaches the shelves, and Gametrust seems to have the best pics up right now. Definitely worth checking out if you are getting the book. (my Cadians need this one).
If you want to see the formation rules in English... they are at this link.
Cadian Formations http://m.imgur.com/a/WGbXH
Farsight Formations: http://m.imgur.com/a/vdlig
Here you can see the formation The Eight.
And many more in our gallery:
There are some unit rules and many more formations, including the one
for the Execution Force.