I'll let the crew over at DC's The Source blog take it away:
You've been wondering why they're back — what their purpose truly is. Well, prepare to learn the answer, as the White Light takes us on a journey of discovery.
Well, even if the Hawks don't show up in this issue ala issue #6, we should hopefully learn some more about the purpose for which they were brought back. Of course hopefull they'll be in the book as well but we'll see soon enough!
Also, Hawk breaking the jukebox for playing the Dixie Chicks? Well played, Mr. Hall. Well played.
Brightest Day #7 hits stores this Wednesday.