Jacqui Lambie is holding out hope she may still be able to return to the Senate, depending on how the High Court rules on another dual citizen senator's case.
Ms Lambie was disqualified from parliament after it was discovered she held British citizenship at the time of the 2016 election.
Her likely replacement, Steve Martin, may also be disqualified because he is mayor of Devonport in Tasmania, although the High Court is yet to rule in his case.
But Ms Lambie says she's waiting to see the outcome of the case involving the Nick Xenophon Team's Skye Kakoschke-Moore, who is fighting to be allowed to retake her seat now she's renounced her British citizenship because the next person on their 2016 Senate ticket is no longer a party member.
"There's some really tricky stuff coming up (in the court cases) in the next few weeks," Ms Lambie told ABC radio on Monday.
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"I'm just holding on to a little bit of hope still."
However, she ruled out contesting a potential by-election in the federal lower house seat of Braddon should Labor MP Justine Keay be knocked out in the ongoing dual citizenship chaos.
Nor will she personally contest any of the seats in the March 3 Tasmanian election, saying her ticket for the Braddon state electorate was already "chockablock full" at the time she left the Senate.
"If I've got people in state parliament, I'll be there to mentor them, I'll be there on the outside and I'll be readily available," she said.
"Other than that, I'll just have to sit it out until the next (federal) election.".
