Nice to get confirmation that the split timeline... well, is a split timeline, and that it's not unravelling.

From the picture of G'raha, we can see that his right hand isn't crystallised yet so maybe he only bonds to the tower just before he leaves, or at least it hasn't started "paying him back" yet and most of his visible state as the Exarch was directly the price of his time-travel trip, since it's indicated that he looked like that when he arrived.

Omega sounds like he's getting old and senile... I'm kind of disappointed that nobody ever found out he was still in there. I was hoping it would have been their key to finally working out how to utilise the rift. It also spoils my idea that an eventual Twinning (Hard) would involve finding him skittering around the Crystal Tower.

And for anyone fretting that it's only a happy ending until the Ascians get involved again... the reborn Warrior of Light can get involved again too. And humanity as a whole is a lot more aware of Ascian involvement than they have been in previous eras, too.