Board Thread:Questions and Answers/@comment-25326704-20160907001937/@comment-18172179-20160907004943

The problem is that he remembers Pre-Flashpoint events; which doesn't make sense. Then there's also the fact that most of the Titans (Nightwing, Arsenal, Donna, etc) have already a past history, different from what Wally has been showing/telling them. So if Wally would be telling them the truth about their timeline, what happens to their past events? Were they made up?

It is easier to conclude that Wally is from New Earth. At least, that the way DC has explained his existence so far.