I've only had time for a quick look at the docs, but there seems to have been a change of heart about the "Western Bypass" and "Choctaw" options. I've got a "Final Alternative" tacked to the wall of my cube that still matches the current LPA (Locally Preferred Alternative), but all the docs that I've looked at so far (again, not many) describe the options in detail. Here's a description from the Executive Summary doc:
Two alignment options around the downtown area are also being considered through the DEIS process as design options or future connections. The Western Bypass Design Option would continue to use the FWWR alignment north of the Medical District Station, serving the area west of downtown on what is known as the Western Bypass alignment, reconnecting with the main alignment at Tower 60 north of downtown in the stockyards area. The Choctaw Design Option would transition onto the UP Choctaw Subdivision north of Purina Junction and reconnect with the main alignment east of the Beach Street station at what is known as Choctaw Crossing at the intersection of Old Denton Road and Meacham Boulevard.The description above doesn't point out that the "Western Bypass" misses downtown FW entirely, and the "Choctaw" alternative doesn't give you a good Stockyards station.
I also noticed that there has been a significant amount of design done on stations in towns that haven't made any financial committment to the project. There's a Haltom City station, two in North Richland Hills, and one in Colleyville. Interestingly, those cities and others (including Southlake) are noted as among the "Participating Agencies" (though that list also includes organizations like the Texas Historical Commission). The T seems to be assuming that those cities will participate some day, if not right away -- even going as far as to project employment increases near those stations. By contrast, DART seems to hold non-member-cities at arms' length, with economic impacts on non-member suburbs like Seagoville and Balch Springs never even mentioned.