WCIV
I like the idea of having a game a season but since WCIV was only 2 weeks long i don't think they should make that an additional season. They should make it a TV movie or Miniseries like they did with Babylon 5. Season 4 should skip ahead right to the Nephilum War.
In the end of WCIV when the tribunal is going on, who is that Asian guy who says "AND I COULDN'T GO ON!" ? Did he have something to do with the plot or was he just a random guy?