Board Thread:The Flash discussions/@comment-24856931-20160528044517/@comment-28428105-20160716225116

I remember from an earlier episode in season 2 where Harry stated that Nora's death was a fixed point in the timeline. Barry changes that ensuring that she is alive. We do not know what happens in the original timeline when Barry is 11. The writers used that most probably so that when Barry saves his mom, a new timeline can form, hence why they are doing Flashpoint. Flashpoint might last about 5 episodes before the timeline is returned back the way it was (well most things).