There's a lot to account for here but let's be frank: we were led to believe that there was a darker ending in store when Urianger seemingly betrayed the Scions in favor of helping the WoD. Don't forget it was a conversation between he and Elidibus that convinced him to intervene. **Spoiler** Let's also not forget about Ukukalhai who is the WoL from the shard that became the Void. Or at least one of them. (Its hinted that the shards that fell did so to an imbalance of either light or dark--if Ukukalhai is really from the Void then Ascians can also move through time because Voidsent have been around for hundreds if not thousands of years. Either that or there is more than one Voidshard.) Elidibus actually rescued him from that world and brought him to the First. ** More Spoiler ** When I saw Thancred in the Shadowbringers trailer with the child in the robe I immediately assumed it was Ukukalhai. It may not be but thats where my mind went. In have a gut feeling that in Shadowbringers we'll be shard hopping. But I guess we'll see.