Who ever does would you please be able to make it in some nice but affordable location next time like Thailand? This would cut down the costs, have better service and people could mix it up with holidays too. Or there are other places too like Philppines. Maybe there should be a voting system where to hold them? Its just a thought anyway 
if you live in that area of the world, find some large conference space. find out the cost to hire the space. and then ask in your area where you have local small meetings or on forums of you country, to see how many will be interested. if there is interest. book it and then offer tickets to people.
remember there is no centralisation in bitcoin, if you want to do a conference. do it