I thought the new revival seasons were terrible and I can see why she doesn't want to continue. Chris Carter said he considered doing more episodes without her. I loved the original series but I think it just needs to be done. Anytime we think maybe we will get a solid answer or some closure he completely fucks it up. He writes in circles with no endgame in sight. That's just me though, I still love watching the first 5-6 seasons pretty much anytime.