Both the Crescent Star and the Fond du Lac train you noted were part of the Y2K Network Growth Strategy (NGS) initiative. I'm certain that entering "amtrak network growth strategy" in the search engine of your choice will return links to interesting material.The Crescent Star was a proposal to have through cars cut from (added to) #19 SB (#20 NB) Crescent at Meridian, following a route roundly that of I-20 over to Fort Worth. You could say it was to be a "reincarnation of sorts" of the PRR-MP "Penn Texas".
The only "survivor" from the NGS is Daily Texas Eagle service #21-22. The only "additions" that ever came to pass were extension of 850-1 Kentucky Cardinal Jeffersonville-Louisville, the surviving Daily Texas Eagle, and a fourth weekly San Antonio-LA frequency.
Here is one such link: http://www.ipt.com/aboard/atk0019.htm
[This message has been edited by Gilbert B Norman (edited 06-15-2004).]