NO ACTUAL SPOILERS IN THIS POST
As many of you may already know, the new Batman/Superman book spins out of the Batman Who Laughs mini series. Its central premise is that TBWLaughs has corrupted six heroes in the DCU, turning them into dark, twisted versions of themselves. Clark and Bruce team up to figure out who they are.
The first was revealed by DC itself in several previews a month or so ago. (Ugh)
But now several more have been revealed in the October and November solicitations - both in the copy and on some of the variant covers.
So be wary if you want to avoid spoilers.