FIFA chief women's football officer Sarai Bareman confirmed a biennial event was being explored.

"We're looking at the feasibility of whether or not increasing the frequency ... would be something that our sport and our stakeholders can benefit from. So we are in the midst of a consultation process," she said.

"We have some very high-profile players, administrators and referees involved in that group. And we're having some very robust discussions around it.

"I won't say that we have reached any conclusions, but it's certainly the collective goal of everyone involved ... to ensure that anything we propose is going to better the situation of women's football and help us to grow."

Her comments came at the launch of the branding for the 2023 World Cup, as FIFA gets ready for kick-off in 620 days.

Initially dual naming was only used for NZ cities at the host city reveal back in April, however, FIFA is also embracing it for Australian cities for the tournament.

This was along with other Indigenous elements, including Te Aitanga-a-Hauiti artist Fiona Collis and Kalkadoon artist Chern'ee Sutton driving the Cup's visuals.

Bareman said they wanted to develop an iconic brand that embraced the rich history of the two nations and their Indigenous cultures.

"Something that's really amazing about both New Zealand and Australia is that we have these incredibly unique Indigenous cultures. And for me, that's one of the things that I think is most exciting, especially for the travelling fans, who ... for the first time, many of them will be able to experience that culture firsthand," the Kiwi said.

"So it's important that we are able to blend elements of their culture and what it represents into the brand in and around the event. Even in the way that we communicate. We're using the Indigenous language to name all the host cities. We've taken, for example, an approach in all our official meetings where we are incorporating the use of the two Indigenous languages into all the formal correspondence and meetings that we have.

"It's really, really important that those two cultures really shine through and that the rest of the world can really feel and resonate with what they both represent."

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The 2023 tournament marks a world of firsts; the first time two nations have jointly-hosted it, the first time 32 nations will compete, the first time either nation has hosted a soccer World Cup and the first time Indigenous cultures are at the forefront.

One of the side's that will be front and centre during the Cup is the Matildas, who embraced their First Nations connection in Tokyo by unfurling the Aboriginal flag - following the racism after England's Euro 2020 final loss - to show their support and solidarity for Indigenous Australians.

The move was driven by Indigenous players Kyah Simon and Lydia Williams.

Bareman said FIFA did not want the 2023 branding to just be a visual look, emblem or logo. They wanted it to be more.

And one way they were doing that is through another first, a sonic identity. Welsh artist Kelly Lee Owens has put together an audio soundtrack which aims to trigger an audience's recall without the brand being named or visually present.

"It was really important for us that it ... was really something that the tournament could live and breathe with, and that those that are involved in the tournament can actually really feel when they come to the stadiums, and when they land in the host countries," Bareman said.

"It's something they can feel but most importantly years and years later identify with and that's part of also having for the first time a sonic identity.

"[We are] also embracing the fact that women's football really is a movement connecting culture, music and lifestyle."