The location of the first International Symposium on Liberty and Islam in Australia will not be disclosed after violent protests were staged when Mr Wilders appeared in Melbourne last year.
Organisers say only that venues will be in the inner city, with a visit to a pub and a cocktail reception at a waterside location on the agenda.
Speakers include SION leaders Pamela Geller and Robert Spencer from the US.
They were barred from entering Britain last year to speak at an English Defence League rally because their presence was deemed to “not be conducive to the public good”.
Ms Geller and Mr Spencer are critics of Islam and staunch supporters of Israel.
Also scheduled to speak in Melbourne are Babette Francis from the Endeavour Forum and the Family Council of Victoria’s Bill Muehlenberg.
In a blurb, the Q Society said that Islam was spreading fast and “no other religious ideology spawns discrimination, division and violence on such a global scale”.