Originally posted by BlackDove
Twilight wasn't finished and never will be 
Unless Ace has masochistic wishes.
What's been delaying a Twilight re-release is two things:
1) New CB animations.
2) Waiting for the SCP features to have everything I want. (namely pixel shaders so I can have my glow effects!)
The plot is still the same, just an overhaul on the Creon and the inter-system subspace device.
As it is, I'm not very happy with the current campaign. Too many weird glitches that appear on some computers, but not on others. Even the attempts by other people to fix the various model bugs haven't panned out, as if it is caused by some sort of phantom.
Anyway, some day there will be a finalized version.
As for the plot:
Warzone, Derelict, and Twilight are more or less concurrent.
Twilight is a small operation in Ikeya (just the GTD Morgaine and a Vasudan admiral who caught wind of what the GTVI was really up to...), it ties more directly to the supar-secrat stuff in BWO than any of the shady dealings in either Warzone or Derelict.