We all know a lot of sports management games use a personality trait system.

Is there a chance to see this in MFN in the future?

Yes, I'd like to add that dimension. I agree that right now everyone is too robotic, and that personalities would spice things up. Not sure exactly how it would be implemented and it's definitely a lower priority than getting the engine in a better state, but it is something that I'll definitely be getting ideas from the community about how to do.

Oh my God, the Diva Receiver factor! (have enough of it in real life with being a Giants fan and Odell Beckham Jr.)

It would add another element. It's always good to add layers to existing game-play.