I have seen certain episodes of the X-Files revival and it feels like the plot has lost its meaning and basically goes nowhere. I feel disappointed since this is one of my all-time favorite shows and my interest in watching the last episodes does not exist anymore. To anyone who saw the whole thing, does the end makes sense?
Technically, there's never an 'end' to a show, because of course any can be revived under a pretense. Blow up the entire universe and, if necessary, there can be a plot-point to revive it.
In the case of X-Files, in the ending sequence,
The son is shot, but appears to have survived, surfacing at the end.
So it deliberately allows for a storyline to continue. In this case,
Mulder, Scully, and the son are certainly left alive. Visually, I would argue that ex-Navy Seal character, Skinner survived by sliding under the vehicle. That is pure speculation.
In terms of the actors returning, they have stated that they will not, but this is neither the first time they have said this, nor has it prohibited the television show from returning without them, as seen in Seasons 8 & 9; further, they returned for a second movie and for Seasons 10 & 11.