I understand they're dead, but there have been some rumors flying around that
Spoiler (Highlight or Triple Click to Read):since this is a stand alone "episode" and not part of the mythology then it will occur within the X-Files timeline somewhere before the end of the TV series.
So, the movie could occur during the middle of season 4 or between season 6 and 7, well, not there really, but somewhere other than the end of the series. |
If this is true, then yes, the lone gunmen absolutely could be in the film.