I hope Akali never rejoins the Kinkou
I was gonna make a longer post but I'll make it simple.
We need characters with character arcs and personal growth. I feel like Akali while in the Order is a static character that can never change because the Order can never change. With Akali leaving and giving Shen more to care about then just having to deal with Zed, suddenly the Kinkou Order has to change or continue to suffer the consequences of its ideology. That's good.
I'd much rather have a new girl join and attempt to fill her role and with that dynamic being explored while Akali remains a very minor antagonist.