The DC October Solicits came out today.
My math may be off but I counted a total of 75 single issue releases. Of those, 19 directly involve Batman, 12 were titles that I think fall into the Bat family of books, 40 were not Batman (a lot of those non Bat Books are Wonder Woman related titles this month) and 4 books that I am not sure if they involve Bats or not. So at least 31 out of 75 books are from the Batman corner of the company.
I counted 20 total collected editions (a very light month). Of those, 6 were Batman books, 1 was Bat family, 8 were not Bat books, and two I am unsure of.