Search "resource roadhouse GNX" on YouTube and it's got a good video. Final investment decision by end of November for Energy Australia. I would think it will go hand in hand with the connection to the grid, Powerlink website says it's in the hands of the related minister. Construction of Jemalong Solar in November.
(I'm guessing that's the video you are referring to? The link just went to their website)
If you follow the GNX linked in you can get this information without hunting.