I mean Emma so far hasn't been written quite terribly since her change into Black King tbh, I know she hasn't been in too many books but shes being written far better than her time in Blue. Also, I guess once we find out how she acts and is written in UXM we can probably tell the direction her character is going to go in for this new "event"(??) im quite excited.
Also does anyone think the placement of these characters is going to be important?