New Revelations: Time Shenanigans

[Valenth]

snippet regarding time travel

But in The Twinning we see how essentially Omega and Alexander are married together. If we imagine that Alexander is only able to alter the 4D block we are in, and Omega able to travel between worlds/dimensions/through-the-Rift... perhaps what the future Ironworks created is a device able to travel between 4D blocks as well. These blocks for all intents and purposes would essentially just be another dimension if you don't try to think too hard on it.

In other words, what I think happened is that when G'raha was sent to the 'past' he was sent to the past of another 4D block essentially, which would explain why his existence hasn't disappeared. He is part of 4D block we players live in, but didn't have his origin in. The future from which he originated would still exist, but in another 4D block then were the game takes place in.