Unless called earlier, the next South Australian election will...

Unless called earlier, the next South Australian election will not be until 2022 (March at the latest) https://en.wikipedia.org/wiki/2022_South_Australian_state_election
That gives LCK a clear 3 year window under support from the SA (Liberal) Government to progress this project.
The Minister for Mines and Energy in SA is Dan van Holst Pellekaan MP for the seat of Stuart.
https://www.danvhp.com.au/

Guess what?

Leigh Creek is in his electorate.
He is pro this project.

Don't be worrying about it for the next 3 years.

IMO
DYOR