Usually, in Star Trek, when there's a timeline change, the indication is that the original timeline is gone and replaced with the new one. In City on the Edge of Forever, Kirk makes a comment that if they don't get the timeline straight, that millions of people who never died before will die.

Much of the time travel in Trek created suspense by declaring a need to restore the original timeline.

It's already been discussed in other questions about how, in the new movie (simply titled Star Trek with no subtitle or series number) they were unable to restore the original timeline. While some of this is open to interpretation, it seemed like in this instance, for the first time, in Trek, there was an alternate timeline that was seen as an alternate possibility - no reference was made to it replacing the original timeline.

In this movie, was there any reference to the original timeline still existing? In this movie, was the original timeline still considered to be intact?