Flash said "you were right about him, wait I'm too early" the thoughts back then was that he was warning about Superman going evil much like Injustice. Which I guess may not happen now as DC is changing things movie by movie based on box office.
I'm seeing it again on Sunday. Not sure how it will hold up to multiple viewings. As I feel that most of Snyder's work gets better with repeat viewings. The directors cut of watchmen is wonderful as is the uncut version of Dawn of the Dead remake.