I sent a few questions through to DPTI's media unit, and here are the answers:
1. When is the Tonsley line currently expected to re-open
The duplication works are expected to be completed soon and an announcement will be made about the timetables for the Tonsley service which will be integrated into the new Seaford line timetable.
2. Will it be a single line or two lines in operation
The State Government is currently working to duplicate the Tonsley line to enable increased frequencies to cater for the expected growth in patronage once the TAFE college and Flinders University campus are opened at the old Mitsubishi site.
3. How will it benefit students at the TAFE
This rail line is a key part of Adelaide's public transport network, bringing more than 20,000 people each day to work at the Flinders University, the Flinders Medical Centre and Flinders Private Hospital.
More than 10,000 TAFE and Flinders University students are also expected to move to new campuses as part of the Tonsley Park redevelopment. The upgraded line is expected to cater for an increase of 450% in commuters using the Clovelly Park station and 600% increase at the Tonsley station by 2015.
4. Are there other benefits to residents of the area
The Tonsley line is also being prepared for electrification although diesel rail cars will continue to provide this service when it resumes early this year.
5. Any other related information that is relevant to the topic
At this time, the State Government is unable to proceed with all of the plans for the $63 million Tonsley Park Transport Project, such as station upgrades, a new bus interchange and road extensions due to the Commonwealth's decision to withdraw its $31.5 million share of the funding committed by the previous Government.
It seems I would have been better off making up the answers myself, with only about 1.5 correct answers to the 5 questions.
In the end I went for a walk to take a look for myself, as obviously the PR people only cut and paste.
EDIT: Tried to fix the image link. With the old version of forum software, posting a link to Flickr gave a preview of the images on here. It doesn't seem to work any more