I'll pick up Flash: Rebirth to see what becomes of Wally, but after that I'm not picking up any Barry-centric series.
And the mess I referred to is the financial one that the Flash is currently in. They took Wally away when pretty much everyone was fond of him, put Bart in when pretty much no one wanted him to graduate to the Flash so soon, then half-assed a way to get Bart out of the book by killing him off and wasting the character, then they brought Wally back and gave him some unremarkable arcs that focused too heavily on the kids. By the time Peyer came around and started writing genuinely good stories again, all of those antics beforehand had driven most of the readers away. Now Flash is selling so crappily that they need Rebirth and all this Barry hype to generate enough interest to make it a top seller again.
I think Joel La Puma over at Comics Nexus summed up the situation quite interestingly:
"Is there a single DC franchise that’s undergone such a hit in popularity over the past two years than The Flash? Once one of the hottest books in comics, not to mention one of the most consistently strong, the character has been marginalized, neglected, and mishandled ever since the departure of writer Geoff Johns and the temporary departure of protagonist Wally West. Since then, the book has seen a much-maligned thirteen issue run of a new series that featured the promotion and death of Wally’s former sidekick Bart Allen; a return to the previous volume’s numbering and a brief run by earlier scribe Mark Waid; and a new status quo featuring a superheroic West family that’s been coldly received, despite energetic artwork by Freddie Williams II and some clever stories by the underrated Tom Peyer. I could make an argument for the story potential of this setup, not to mention that it’s a viable dynamic to bring in a wider audience if The Incredibles is any indication, but given that DC has finally punched the bright red panic button that is Barry Allen, it’s no longer an issue. The situation is now this: Johns, DC’s fallback guy in terms of building cohesive worlds and streamlining history, is here to play cleanup and prepare The Flash franchise for its next iteration."
I think this line of thought seems to line up with your comments here. But how would you judge the return of Barry Allen? Part of a calculated long-term plan by Johns, Didio and others within DC to restore the Silver Age, as some have speculated, or more of a panicky knee-jerk reaction to slumping sales, with Barry Allen as the "bright red panic button" as described here?
On another note, after reading and enjoying "Wonderland", I have now got round to starting the "Blood Will Run" TPB. Three issues into the main "Blood Will Run" storyline, and I think it's just great. Wally West's Flash just makes such a great, likeable hero, who I think Johns will have a tough time matching with Barry. I love the way the Keystone ensemble gets built up, and how the Rogues seem to flit in and out of the stories. I can't wait to get to the "Iron Heights" one-shot included in the TPB, since that gets so much praise.