User blog comment:WoTee129/Invasion Theories and Predictions/@comment-4977003-20120501054852/@comment-4803246-20120501203130

A quote from Greg Weisman, taken from his answer to that question on time travel. I know the color makes the words illegible, but I don't know how to fix that. Highlight the passage and it will be easier to read.

"A lot depends on your model for time travel. I tend to use the roll of film model when explaining how it works in the Gargoyles Universe. But your analogy here sounds okay. Don't know if it tracks. Rivers are so changable, don't you know. I also don't see you floating back to the point where you exited. You may not live that long, for starters. And you can float beyond that point easily... in fact you will flow beyond that point unless you do something to stop yourself."

In no part of his answer did Greg Weisman specifically state that he dislikes time travel in which you can change the past. He merely said that that was how it worked in Gargoyles, which is not to say that that is how it works in Young Justice. Moreover, his ellaboration on the river analagy leads me to believe that he is open to different models of time travel for different scenarios. It is just a question of which model is being used for Young Justice. I maintain that it is the river model, and I would think that you won't change your mind either. We'll just have to wait and see which one of us is right.

I don't think Wally has become Flash yet because one, the Flash seen in Happy New Year! looked exactly like the Barry Allen Flash from season one, and two, that would mean he is a member of the Justice League now, and one purpose of Happy New Year! was to establish which characters from season one are still with the Team, and which have moved on to the Justice League. Logically, if Wally is the Flash, and is with the Justice League, then he would have appeared in Happy New Year!.