Football Federation Australia's announcement last week that two new teams will join the competition in the 2019-20 season couldn't have been more timely for City, a foundation club of the NSL and a leading expansion contender.

Their intended home ground, Ballymore, is suddenly back in the news.

Rugby Australia is behind a fresh push for a rebuild of the old and decaying 18,000-seat venue in inner-city Herston, which is a $1 million per year drain on the Queensland Rugby Union in depreciation, maintenance and associated costs.

It ties in nicely with FFA's bid to host the 2023 Women's World Cup, which could include a new rectangular stadium in Brisbane, as well as rugby's plans to host the equivalent tournament in 2021.

A new stadium would also service a glaring need for a boutique alternative to Suncorp Stadium, which is currently the only rectangular venue in Brisbane fit to host professional sport.

"Ballymore is a historic sporting venue with a great legacy," Brisbane City chairman Robert Cavallucci told AAP.

"It deserves to be returned to the pinnacle of elite sport.

"We've got a history of playing games there, it's part of our natural home on the north side of Brisbane, it sits right in the middle of our six hectares of playing fields.

"Brisbane City is absolutely committed to supporting the QRU and the business case for delivering a boutique rectangular stadium supported by a dedicated high performance centre for multiple codes - rugby and football."

While Ballymore's accessibility has been criticised, City's A-League bid includes plans for improved public transport links.

One option is the construction of a station on Butterfield Street for the planned Brisbane Metro, a high-frequency bus system that would use existing busways.

One of the metro lines terminates at the nearby Royal Brisbane Women's Hospital, and an additional stop at Ballymore would provide a simple yet elegant solution to the venue's transport woes - as would an upgrade of Wilston train station, which is within walking distance.