"Oh, I don’t really know yet, to be honest," the Stranger Things star quickly replied. "And when I say 'I don’t know,' I mean I really don’t know. [Laughs]"Confirming her return in X-Men, Sink went on to reveal that she's already met with Schreier to discuss what's next for Marvel Girl. That makes them more compelling, complex characters and a more complex hero if they don’t start out that way. However, in a separate conversation with Entertainment Weekly, Sink mentioned that she's been involved with screen tests for X-Men.