Quote Originally Posted by redheadturk View Post
G'raha himself theorized that that is the reason he was not simply erased, as he thought he would be once the timeline had been changed, and the one Tales of the Shadow confirmed that yes, the timeline did branch. WoL would trust G'raha enough to know that it would be possible to do it again.
Theorised in the general usage of the word, yes, but it's merely a hypothesis with no way of being tested. The characters have no way (to our awareness) to confirm whether the other timeline still exists alongside their own, or whether it is gone forever and G'raha survived simply by being in the new timeline when it overwrote the old one.