Check out Frank Spotnitz' latest interview at Screendaily. In there he gives a lot of details of his upcoming show, Hunted,
He was also asked about the chances of a 3rd X-Files Movie. Frank responded:
“There is a very active and relentless fan campaign for a last movie. I do feel like it would be a terrible shame if that didn’t happen. It feels wrong not to give it an ending around the alien colonization of earth. David [Duchovny] and Gillian [Anderson] feel the same. I have a clear idea of how it would go and I’ve been talking to Chris Carter about it for a long time. I’ll keep banging the drum whenever I meet the Fox guys [the studio holds the sequel rights but was disappointed by the original’s lackluster box office].”
We'll be informing of more details on Hunted as they come and any upcoming plans for the XF3 campaign.