Someone call me when Kamala Harris appears as a guest star in one of Kamala Khan's books. I have a feeling she's going to meet the senator one day.
As for Ewing and Blue, I take Al at his word that he feels like he's gone as far as he can go with Adam. Could that change? Sure. Sometimes a writer needs a hiatus from a character in order to get the juices flowing again. But I don't think that is the case, here. Ewing has reached the point where he could ask to write a Blue Marvel series, and they'd let him. Or he could feature Blue Marvel as the alpha in a team book, and they'd let him. That there aren't any projects like that in the works tells us all that we need to know. The next substantive treatment of Adam will come from a new writer.