"Emily" is Part 2 of "Christmas Carol"
          The episode will feature the return of Agent Mulder

Mulder will try to find out more about Emily, this will result in a an
apparent deadly confrontation. With who, I don't know!

Scully will tell a doctor that she is Emily's mother. 

A mysterious doctor will try to inject Emily with some kind of drug.

Emily may have the same disease that Dana had (cancer).