Nine Fifa member federations, including New Zealand, are preparing to submit formal plans for a 24-team tournament by October 4.
The others are Argentina, Australia, Brazil, Bolivia, Colombia, Japan, South Africa and South Korea, which could bid with North Korea.
A faster timetable is needed because the 37-member Fifa council next meets in person during October 23-24 in Shanghai.
Fifa now wants to modify the bid process in August by asking the nine federations to reconfirm interest for a 32-team tournament, and inviting other federations to enter. Bids would be submitted in December and a Fifa-run evaluation of the candidates would be published in April.
If council members agree to the expansion by next week, Fifa suggests they would pick the host next May instead of March as previously scheduled.
It is unclear how the extra eight places would be allocated, with Fifa proposing to consult its continental governing bodies.
"Such proposal would be formally approved by the Fifa council at a future meeting," Fifa said.
Fifa is also likely to change the commercial structure of the Women's World Cup, giving it dedicated sponsors.
- AP