You might get him back, but he wont be the Wally you remember and you will be disappointed all over again. So best if he does not show up.
I agree with this so much. Wally West (along with Nightwing and Jack Knight's Starman) is my favorite comic book character. But he was my favorite comic book character, not because of his name, but because of the great journey he went under starting with Wolfman and Perez's New Teen Titans and ending with Geoff Johns' run on The Flash. If he came into the New 52 where The Flash mythos is more or less rebooted, it wouldn't be the same, and I wouldn't be happy as a fan.
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