Reading the Paradox storyline, I've become sure that we've reached the maximum Barry Allen and Wally West can offer to readers.
Unlike Batman and Superman, The Flash is built on the idea of passing the torch, so no one can tell me that we would be weirded out by a new Scarlet Speedster. All Barry stories became a repeat of the same thing and they don't add anything to franchise anymore.
Does it mean it's time to bring back Wally? No. Wally is beyond saving. He's as obsolole as Kyle and Tim, only exists to bring as a gimmick to fans. No but seriously! Wally is nothing but a walking event gimmick for sales. There is absolutely nothing interesting about him in regards to his personality.
It's time to move on to new Flash. New blood and new adventures will give it what it needs.