The reason why we dont do that is because we would probably put the top three nations into seperate pools. That dosent guarentee competitiveness. Which turns us into a laughing stock.
Not to mention, the 2000 WC was a complete and udder failure.
I think maybe in 2017 we might be able to scrap the Super Pool as France, Tonga and Samoa should be able to compete with the big three. Maybe even the USA if they get professional.
Seeing as you would like to see a 16 team competition, please, why dont you present a format and pools that would be competitive, assures the 2 best teams in the final and creates public interest. Oh, and money. If we have the same format as we did in 2000, we would end up having 31 matches and without a Super Pool, there would be no way for us to have a financially viable WC.
I dont really want to see a 16 team world cup, but for the sake of the exercise:
Group 1 - England, Ireland, Scotland, Wales
Group 2 - New Zealand, Samoa, Tonga, Fiji
Group 3 - Australia, Italy, Greece, Lebanon
Group 4 - France, PNG, USA, Russia
Top team in each group goes through to a top 5 (decided on for and against) . 5 th team will be the side with the best for and against across all of the groups.
Group 1 games - Would be huge as all british sides get to play their main rival - England. England Ireland had massive tv ratings at the 2000 world cup.
Group 2 games - are a lot closer than they appear. It isnt out of the question for NZ to lose a game (through a shocking performance). If this happens they are in no way a lock for the final qualifying spot, on goal difference.
Group 3 games - Australia will face mainly expats, but realistically, these are the players that will be well positioned to give them a run for the money, although as we all know, Australia would win each game (a problem with all bar the super pool format.
Group 4 Games - Close pool between 4 teams with deserving domestic competitions. Not totally unrealistically for the winning team to get two bites at the cherry.
Semis - The top 5 system would mean that there is no such thing as a dead group game (unlike every other world cup system). Also, Each of the big 3, must perform at their best and get a good for and against or else they might end up having to walk the sudden death route just to make the final. (even Australia is at risk of this).