From what I have heard the original plan was to build the University/Airport line as one (from University Hospital to the airport). This was back pre-Olympic Games though. I guess they didn’t get enough funds to build the entire line as they wanted. So the plan was to finish the line after the games as one complete line. This is what I have learned in my classes. Obviously the other two new lines change things.
I did some researching and I found some snippets of information.
From the Deseret News:
Deseret News, The (Salt Lake City, UT) - December 4, 1999
Where will TRAX be heading in coming years?, Transit experts offer views on future expansion
"Long before its TRAX light-rail transit system was completed, the Utah Transit Authority was pushing Congress and the Utah Legislature to help it expand its rail network. Now planners with the Wasatch Front Regional Council are busy analyzing possible spurs into West Valley City, West Jordan and Draper. And despite a recent Salt Lake City Council vote against it, a 2.5-mile segment of a proposed
airport-to-university line still could be constructed before the 2002 Winter..."
http://nl.newsbank.com/nl-search/we/Archives?p_product=NewsLibrary&p_multi=DSNB&d_place=DSNB&p_theme=newslibrary2&p_action=search&p_maxdocs=200&p_topdoc=1&p_text_direct-0=0F364FC4C7DE14DF&p_field_direct-0=document_id&p_perpage=10&p_sort=YMD_date
&s_trackval=GooglePM
I haven't heard anything since this, so I'm assuming it will stay the University/Jordan line, and not change when the Airport line opens.