I wonder how that character will play in 2017? The original wasn't really negative in its portrayal of a transgender/non-binary person, but it wasn't exactly a positive portrayal either. Dunno how modern sensibilities will take to that. For all we know Duchovny's part might just be a quick cameo or something though and he'll barely even be in it.
They havent been showing the younger actors in the promo stuff at all, but I presume that must just be cus the older actors are more recognisable in marketing. I'd be surprised if the new show didn't put a lot of focus on the younger actors.