Production of episodes containing Kevin Kilner (William Boone) have wrapped up, and it is unsure whether he will be returning to do any more as the filming of Season 5 continues for Earth: Final Conflict. However, the results have prompted nearly a half dozen source reports from the set.

The biggest news is that in the episode "Boone's Assassin," William Boone apparently gets his revenge on the person who killed him originally -- Zo'or (Anita La Selva). In the episode, both Boone and Ronald Sandoval (Von Flores) want to take revenge on Zo'or, but it's Boone who gets to the alien first and somehow suspends his ability to move, possibly stasis.

In other reports from the set, the new atavus aliens will apparently look less alien than either the Taelons or the Jaridians. They will appear in the season premiere and will lay clain to Earth because they say they were on the planet first.

Also, Guylaine St. Onge has been confirmed as a guest star to play an atavus, according to reports. St. Onge originally appeared as Serena in the episode "Blood Ties."