Well, it appears that there have been some changes in the local convention scene which some of you may already be aware of.
Essentially it appears that what was previously known as Armageddon Melbourne is now under separate/private ownership and has been renamed as the "Australian Movie and Comic Expo" -
http://www.amcexpo.com.au/
Armageddon has departed our shores and focussed on their NZ shows and has also been renamed as NZ Comic Con -
http://comiccon.co.nz/
However, given the close relationship between the 2 shows, they will likely share guests.