The need to drop the family drama and focus more on the young adult *****. I think the audience will respond better to that.
I'm personally sick of the Struckers as a family. I'm hoping they break up some how. Reed getting killed off, Andy joining an extremist group. Kate and Lauren getting stuck in the middle.
And I think they need to up the name value of some of the mutants. I'm all for creating new characters, but there's plenty of C list mutants they can use. Starting with the whole of GenX. Monet, Skin, Penance, Chamber etc.
They could bring them into the show as a rival underground group with ties to the xmen that are in hiding or something.