I'm not too worried about Luke and Cirkut. Max seems to have an input on a lot of tracks, and we all know it will be magic when he is involved. Kojak is on there which is great. He makes more experimental pop music. We also have Shellback and Savan on one track who are under Max's team. Then Matt Squire, who is also an interesting producer. He knows how to intertwine rock and pop, based on his previous work.
I don't know why anyone wasn't expecting this much Dr. Luke... She is his artist. He basically discovered her and developed her music career. Of course he is going to have heavy involvement in the project.