So...after playing through 4.5 MSQ, and seeing how even Alisaie has dropped into deep slumber like the remaining Scions. That leaves just Krile, and, sadly, I think Krile and possibly Lyse are also going to drop out of the picture in 4.55 right before Shadowbringers. So, I have a theory about how Shadowbringers is going to be set up. For awhile, since the voice started happening and Scions started dropping, I've had this dreading sensation that something -really- bad is in the works. Then I started putting some pieces together. All of the Scions at this point (at least the main ones, i.e. Thancred, Y'shtola, etc.) are unable to stop what's happening to cause them to drop into slumber, which means, at any moment, Lyse and Krile are bound to have it happen to them. Then I considered the fact all of them are being brought to the Rising Stones, a place that has been infiltrated by traitors before. They're all in one place under 'observation'.
So, I thought of the worst possible thing that could happen, and it fits with what's already being put in motion. All the Scions' bodies are going to be hijacked by the Ascians.
From there, I'd speculate that either they're going to used the Scions to either turn the Warrior of Light against the Alliance...or force the Warrior of Light into their service (using the Scions souls as a bargaining chip), turning the Warrior of Light into the Warrior of Darkness.
To that end, if the former happens, then the WoL and Gaius will become temporary (maybe grudging) allies.
What are your thoughts on this theory? Do you have another theory about what's going to be set up for the next expansion?
Edit: I also thought of something additional considering all the Scions placed in the Rising Stones. They say that Chirurgeons are overseeing them, but they haven't introduced us to any new characters. If I were the WoL, I'd want to -know- who I've entrusted their care to, but that part has been...left out. Hmm.