What's next for him
With J3 dead, what will Xin do? Go back to Ionia?
And
How in the world did j3 die before choosing a wife for his son!?
With J3 dead, what will Xin do? Go back to Ionia?
And
How in the world did j3 die before choosing a wife for his son!?
He'll do his duty.
Xin has pledged loyalty to demacia and he has already aknowledged Jarvan IV as his new master.
Also J3 was assassinated. There were plans to marry Lux with J4(because Luxs family is aware of her magic and if she was the queen, then she'd be basically untouchable), but Lux didn't appear to the meeting where they wanted to make the proposal, causing the whole thing to be delayed.
How do we even know that J3's death was real? I mean, Le'Blanc was able to run around as J4 without anybody noticing so how do we know that she hasn't just faked J3 death to cause even more chaos in demacia?