At the bare minimum, Australian clubs anticipate the winner of Super Rugby AU will face the winner of Super Rugby Aotearoa at the end of their 12-week seasons.
But multiple sources have told the Sydney Morning Herald that Super franchises from both countries want more than just the one crossover match, before a full return to a trans-Tasman tournament in 2022.
Multiple formats have been discussed by clubs for next year, all of which would require free trans-Tasman movement being opened up.
Several formats for an extended cross-over finals are being looked at, and so too is a trans-Tasman knockout competition, which would take place after the respective domestic seasons.
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One of the formats would see Super Rugby AU and Super Rugby Aotearoa played for a period before two trans-Tasman competitions are run side-by-side, with the 10 Australian and New Zealand franchises split into pools of five.
After playing a round-robin, either the top two from each group could square off in the semifinals, or the winner of each pool would simply face each other in a grand final.
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It's believed Nine - who are closing in on a broadcast rights deal with Rugby Australia - are also eager for a trans-Tasman competition to take place.