A-League clubs and Professional Footballers Australia, backed by state federations, NPL clubs and FIFA finally managed to wrest power from the Lowy family at an Extraordinary General Meeting of the FFA Congress on Tuesday.

And after getting a majority vote to change the constitution and open up voting to give clubs, players and women's football a bigger say, the Congress then voted to radically overhaul the A-League.

From next season in 2019, the A-League will split off from the FFA and become a standalone body working under licence from the FFA.

Congress voted unanimously for the A-League revamp to be ready to roll out by the end of March next year.

But the massive shift has now put the planned expansion of the A-League in doubt.

A decision on the winning bids was set to be announced on October 31 - but in the immediate wake of the FFA Congress vote, A-League clubs privately admitted the announcement or even expansion itself could now be delayed.

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Today FFA Head of A-League Greg O'Rourke admitted the expansion timetable is hanging in the balance.

But he insisted expansion WILL still go ahead...but, at the moment, no-one quite knows when.

He is set to present his team's final report on the expansion options to a board meeting on October 16 where a final decision was expected to be made on which specific bids would get the green light.

Now though, the decision will be on whether or not the board should even make that decision.

With a new FFA chairman and likely new board directors to be voted in at the next annual general meeting, the current board may opt to leave the crucial expansion decision to the new directors.

However any new board may yet decide to put a halt on expansion until the new A-League body has been set up next year.

Or else the current board may still decide to go ahead with a decision which has been in the planning for the last two years, with clubs around the country investing heavily in their bids and proposals based on entering the A-League next season.