How about combining OFC and AFC then splitting it into two, say East and West AFC, with the border being say, India/Pakistan or even as far as Burma/India. Then the developing nations of the OFC can play against those of East AFC, and not have to travel to the other side of Asia, ie Oman or Yemen. I am sure the likes of American Samoa, Fiji, Tahiti, and all could learn by playing nations such as Guam, Laos, and Cambodia, and the stronger teams such as Australia and New Zealand could battle for the WC spots against the likes of Japan, China and Korea.
If they were to combine the two confederations, they could have 5 WC places, say give 3 to East AFC with probably China, Korea, Japan, Australia battling it out. and 2 to West AFC, with Iran, Saudi Arabia, Jordan and Bahrain battling out with that. Or even the top 2 of East and West qualify direct and there is a playoff between the third best for the fifth place. Even with 4.5 places between East/West AFC, this could function, with a possible playoff with South America or CONCACAF or even UEFA.
This is all about producing better competition for football in general. A stronger AFC and a stronger OFC, will see a stronger World Cup, with less of a gap between nations at the WC. That should be the ultimate goal of FIFA.