For a month, comic book-wise at least, all Bat-related issues are shelved to reintroduce the return of The 'Bat'Man...Bruce Wayne in the DC Universe. The cliffsnotes are as follows - for about over a year or so now, Bruce Wayne was believed to be dead by everyone who knew him from the first Robin, then-Nightwing and now (one of 2) Batman Dick Grayson, to the Man of Steel Superman.
Only one person believed that he was still alive, and for almost a year - but only a few months DCUwise - he had alienated himself from his family and friends to find evidence to support his theory: Tim Drake, former Robin and now donning the identity of Red Robin. Tim discovered that Bruce wasn't only alive, but lost in time. Eventually the others came around to that same realization and Tim reconciled with his family before informing them of his findings.
The 6-issue miniseries titled The Return of Bruce Wayne
hasn't been completed yet, issue 5 having only come out today, but it chronicles the Dark Knight's journey through time as he attempts to reclaim his memories of who he is.
As for the October-related month...( Red Robin & Batgirl #1 )