Alright, let me begin by saying, that contrary to the majority of opinion here, efforts like this
are positive and should be reinforced by the community, so I thank you for your effort here.
Although unlikely, the possibility of the release of the Jedi Knight Source Code by LucasArts to the public domain would be a huge step - one that would significantly increase the chances of someone that had the nessecary programming skillset to put the effort into rework the Sith engine in such a way that would attract new and old players alike to the Jedi Knight realm. The main problems I see with anything related to programming based efforts to revive Jedi Knight is that:
1) The majority of programmers who would be willing to put time and effort into such a project lack fundemental skills nessecary to reach completion - this is not an insult, but simply a reflection of what occured with the Sith2 project. The presence of experienced or willing physics coders was apparently absent, which either contributed to or was solely responsible for the abandonment of the project. I don't presume to know the exact facts in this case, all I know is that this was cited when the Sith2 project was shut down. Ask Jon`C.
2) Even if there were/are individuals present in the JK community who had the nessecary skills to do something that would have a high chance of reviving the Jedi Knight community, they do not have the time to, do not have enough motivation to(begin, or complete), or simply do not wish to.
Referencing names would be pointless, but rest assured that in the least couple years I put effort into trying to solicit the cooperation/assistance of many capable individuals toward the common goal of reviving Jedi Knight. I felt, as I still do, that folks who were actively involved in project that would have a significant contribution to JK's player base should be reinforced as much as possible, because such efforts were so uncommon. I had put my faith in many projects - Sith2, Jedi Knight Enhanced, JKLauncher, the promised cooperation of people who offered their assistance in the contruction of a Jedi Knight lobby system, etc, etc, it goes on. As we all know, the only success in the last couple of years has been Shred's amazing project, Jedi Knight Enhanced, which was completed despite initial setbacks Shred encountered when attempting to cooperate with other capable individuals who were more interested in getting their way in regards to miniscule aspects of the project than cooperating with someone who was willing to actually put effort into such. So, props to Shred for rising above the inadequacies of certain people involved in the initial "Jedi Knight Rebirth" project. The result of the project more than showed to the community that JediKirby was nothing more than a whiny bigot, and that Shred was clearly far more assertive and intelligent than his shorter wannabe competitor.
Conflict aside, the lack of assertiveness, successful mediation, cooperation, and adequate effort undoubtedly led to the demise of Jedi Knight.