So shard destablization due to killing Zodiark and Hydalean was easy to predict, although I didn't guess Halmarot's plan was "Ascian rejoining plan is the only solution, otherwise everything literally dies". I also find it interesting that the Winterer group are basically a bunch of people all in it for themselves, but they still serve the greater purpose of preserving some life. Azem's Key (Ethos) will no doubt be how we solve everything. My guess: Calyx at the end of the MSQ story basically tells you that they all have their own end goal and they all feel the ends justify the means, because humanity will ultimately benefit. I think all of this is building towards the WoL/Azem sacrificing themselves to save everyone ultimately. Might take a bunch of expansions, but I wouldn't be shocked if we merge with all the Azem shards, basically become Azem again, we travel back in time to set all the plans in motion as sort of a closed timeloop/predestination paradox thing (living as Azem in the past), then we sacrifice ourselves to stabilize all the "rejoined" shards (by creating stable gateway connections through our travels).