On Thursday the Senate talked about everything under the sun, except this issue. They do not sit again until 9th March. The Order of Business (the "Red") has not been issued for that day yet.
I believe the Opposition and other non-Govt senators continue to support the pilots' position. However two weeks is a long time in politics and deals can be worked. If your MP is a non-Govt one, and you feel like doing to, a short note to them might be valuable. Simply say you understand the Govt is attempting to rescind the Senate vote that squashed this overly prescriptive piece of legislation; furthermore that there are clear safety and security benefits from having off-duty pilots jump-seating and hope (the MP and his/her party) can continue to support that position.
If your MP is a Govt one I don't think you'll be able to change their mind.