When I was reading Justice League 9 this week, there was one quick moment of Batman staring at a letter, which seems to have come from his father.
The letter mentions Barry Allen, which suggests to me it came from Flashpoint’s Thomas Wayne. Does this mean that Batman knows about Flashpoint? I know that was hinted at in the end of Flashpoint, but this is the first real tangible evidence we’ve had since the New 52 started. Real curious if this means anything.