User blog comment:Eobard95/Savitar's timeline/@comment-27673963-20170918021317/@comment-27673963-20170918035741

1. I think Barry did get thrown to 2017

2. I think the timeline goes like this, Flash creates TR in 2020 to fight Savitar, TR becomes Savitar and returns to the 2020 fight, he loses against all the TR's and is trapped in the speed force, he gets out of the prison in 2017, he kills Iris, he travels to 2056 to kill Flash, he loses, 2056 Barry finds out his identity and sends the message to Rip Hunter.

3. I think the thing that changed the timeline completely was when Abra Kadabra arrived in 2017, this is what gave Barry the motivation to find out Savitar's identity. Abra Kadabra told Barry that Savitar's identity was the key to winning, so I think that is what changed everything.