I agree. Looks like Metron Wally was Didios idea. Maybe Wally was supposed to have a big part in DM's climax and Didios exit scrapped that.
I am happy that the last bit was focused on Wally. Looks like him and Barry will be in the League. Maybe like here Bendis will use him as the readers view point. The art by that part was good as well.
On another note. That last splash page was epic. Will it actually happen this time or is it just another tease?