I was scouring the internet trying to find if DC had planned an ongoing Shazam! title that was within continuity and discovered a Justice League book that is supposed to be coming out this year on Wikipedia featuring Green Arrow, Hal Jordan, Captain Marvel (Freddy), Supergirl, Batwoman, Congo Bill/Congorilla, The Atom (Ray Palmer), and an incarnation of Starman not seen since I think the 80's.

Anyone else find this and/or know anything more, such as a release date?

I've heard of it. Its supposed to be written by James Robinson. I don't have a link right now. If they mentioned a release date, I don't recall. I think it was supposed to be some time after Final Crisis.

The version of Starman is Mikaal Tomas, last seen in James Robinson's Starman series about Jack Knight, which ended in 2001.