I remember reading an interview a long time ago, Chris Carter saying that he could continue the X-Files without Mulder and Scully indefinitely as long as they come up with the stories. Well, no.
That was the period of time when Duchovny was suing Fox and alleged Carter was involved in syndication issues I think.
http://www.ew.com/article/1999/09/03/david-duchovny-vs-fox
Duchovny wanted out of the show by then, tired of the many years put in it, and Gillian was pretty close herself to burnout. In some interviews Duchovny said he wouldn't mind the show continuing in movie sequels, and that he'd be excited to revisit the Mulder character at different stages of his life.
That's the way they should have done it, a movie every couple of years, and if they weren't successful at the theaters then Fox should have done X-Files specials every so often. But of course, all the behind the scenes politics and deals and agendas prevented all that, and the X-Files universe was left to stagnate and the powers that be wanted to squeeze it out of the last drops of blood left in it. The story of that fictional world suffered for it.
They passed the torch to Doggett and Reyes, and although able and competent, it all was just not the same. The X-Files= Mulder & Scully= Duchovny & Anderson. And that's that. If new actors are to be used, they might as well make it a completely different show since the dynamics of the people involved will be completely unique. Like Fringe, which I hear is good. Otherwise, the old show with new actors risks aping the past not its own, becoming a clone, a drone, a cataloger, chattel, a slave to the nostalgia of indescribable magic.
The X-Files can only be stretched out so thin, and in that era it was already exhausted, after seven, eight, nine years, it was close to burn out and went past it.
The X-Files is the kind of show that
needs to have a set time to end, an outline, a punchline to its plan. Or at least, let it come back at the times the original creators and actors really want to, when they regain that passion and fire to revisit that world. Their fans will be waiting.
The times are different now. People are more sophisticated, technology changes the very culture and the way stories are told. I am excited to see how the X-Files deals with current times, and I think their stories will be invigorated, fresh, and at the very least it's likely we will have the strong character moments that set the show above others like it. I really did miss it, and I wish they recapture that old magic, as elusive as the truth out there.