According to Diamond/Previews’ shipping updates, Flash #4 has been pushed back one week from July 28 to August 4. (Hat tip to Jay75 on Comic Bloc)
In the discussion on Comic Bloc, trmnlvlctyyy pointed out that Francis Manapul has been traveling a lot filming a TV show, which probably interferes with his time to work on the art.
On the other hand…how many comics is Geoff Johns writing these days? Add in the fact that Brightest Day is biweekly and has to be a priority, and he’s got that new job wrangling all of DC’s media adaptations, and you’ve got to wonder just where we should be pointing the finger.
Flash #3 is still scheduled to arrive in stores next Wednesday, as can be seen on Diamond’s upcoming releases list.