Not sure how I feel about this. I loved the X-Files, but it's had it's time really. 
Can't see either Gillian or David wanting to be tied down to doing the same TV show again with heck knows how many episodes per season, especially if they are involved with other things. Maybe they would come back to it if the seasons were shorter.
They'd certainly do another film though. I think they both have said that they hope it will happen.
Guess we shall just have to 'watch this space', and see what comes of it.