Things that *could* show up (leaving in some ambiguity just to keep some surprises):
The start of the telepath war The start of drakh war Londo's fate on Centauri Prime The first year trying to make the Interstellar Alliance work Inter-faction fighting among the Alliance members The development of Mars as an independent state The legacy of William Edgars' black projects Fallout from the civil war, and the feelings about it How Lennier, Sheridan and Delenn will get along now
