Board Thread:Young Justice News/@comment-47881-20121220000249/@comment-432124-20121222055913

Shade234 wrote: So, who thinks Impulse's future isn't gonna change? Except for the falling ash thing. I don't think that Impulse's future hasn't changed much except for Neutron and the falling ash thing. I think that if it wasn't still heading in the direction of the Reach apocalypse, that would have shown somewhat at the end of "Bloodlines". According to this, Greg didn't notice any change with Happy Harbor other than the ash, meaning that Happy Harbor was (or at least was supposed to be) as devastated after Impulse's departure as it was before Impulse left. And if the rest of the world was OK, I'm certain that somebody from outside would have helped rebuild Happy Harbor.

So unless something happens that puts the time-stream on another path, I don't think that Impulse's actions in the present are gonna make much of a difference.