Based on current eBay listings, it looks like the new books for this month are so far:
Batwoman/Supergirl: World’s Finest Giant #1:
Swamp Thing Giant #2
Batman Giant #2
The above covers are of the editions that are now available at Walmart. The direct market editions (which will all be out at a later point, starting in December) will feature different artwork, with this being the alternate cover for Batwoman/Supergirl #1:
The Batwoman/Supergirl book is a nice surprise. It’d be nice if DC would return to doing press for these books and mention them on their site once more.
As a reminder, these books are not just reprints of existing material, as they do feature plenty of brand new content as well.