Man, I would agree with that best-case scenario on so many levels. However, I just don't know how feasible it would be for the tracking and a station location unless it were to be built directly over I-35 somehow....
The best compromise in my opinion would be by the airport since it would allow for existing regional highways and future transit options play double duty for personal and business travelers alike, not to mention workers. And yes, the blue line extension would be ideal in this scenario.
The layout would never happen here, but I've always found
Shanghai Hongqiao Airport/Railway Station to be a fascinating concept.