All undeveloped content from Lego Star Trek.
The Final Mission Edit
"The Final Mission" was meant to be the third chapter of the story, but it was never written.
Much of CaptFredricks' vision for this chapter was later implemented in the form of "Zenith, Part III", with X being defeated, The X dissolved, and the Federation saved by the crew of the USS Enterprise-E.
The only major difference between the two is Kardok. In this arc, he would have been a loyal follower of X to the very end. In "Zenith, Part III", however, he betrays his master, seeing the error in having joined him in the first place.