if you go to this link -
Taronga and Western Plains Zoos
Has a very rough guidleine to the developments, now take in to note, the first 5 projects on there earmarked for completion between 2001 and 2004, are only just finishing in 07, so as you can tell its a very rough timeline, BUT the exhibits ahve so far opened in that order, so order wise, pretty accurate, though, not on there is the 54 million dollar top entrance precint, that will transform the car park and entry in to a new buet entarnce, complete with 3 story car garage, new landscaping, and al freso dinning, which has started i ebelive this year. this will also have a new 21st century entry scehme, through general admin, and pre-purchase internet tickets as well i beelive. as well as the bull elephant facilities, which are ear makred for completion by december this year- another $7 mill.
Also, on the timeline, the new african rainforest precint, the latest annual report (link below) is earmarked to open feb 2010. Though no official release otehr than this 1 line in the opening pages of this annual report.
in report-Page 3 'yeasterday'
Page 4 'today'
Page 5 'tomorrow' - where it says new rainforest area.
http://www.zoo.nsw.gov.au/imagedata/annrep2007.pdf
So thi9ngs are moving along, though maybe not in the original 12 year plans, but who cares, im just happy we'll have the world's best zoo

lol maybe.
P.s sorry about errors, i just get very excited about zoo stuff, and type very fast!