I'm new to this forum, but thought I'd add my two cents to the argument. I think that in the long run SuperRugby should be considered as the Champions League of rugby, and from a fan's point of view, a do or die element to each game would get viewership numbers up. Start by selling the selling the Currie Cup/Itm Cup rights as a combined package with SuperRugby, and use these two tournaments to promote local derbies (even possible to incorporate Aussie sides into Itm Cup due to proximity), and then create an 18 team, 3 pool (not conference) SuperRugby system. Teams play each side in their pool once, with the top two sides from each pool moving on to the finals series.
An example of proposed format would be:
Pool A:
Blues
Chiefs
Reds
Force
Sharks
Cheetahs
Pool B:
Brumbies
Bulls
Lions
Hurricanes
Highlanders
Asia/Pacific side (could be based in Aus)
Pool C:
Stormers
Crusaders
Rebels
Waratahs
Kings
Argentina team
This would make 5 games per side
This would evenly distribute sides from each "conference" over the 3 pools (assuming the Asia team is considered an "Aussie" side and the argentine side an "kiwi" side.).
Each side would then host a team from each conference at home, and play the other team from that conference away. The game in each pool involving the two sides from the same conference will be played at the home of the team ranked higher the previous season.
Prior to the playoffs, the pool winners and runners up will be seeded (similar to that in the Heineken cup) based on points scored in pool play.
Top 2 seeds will be given byes to the semi finals and will host the semis
Next 4 seeds play quarter finals: 3vs6 and 4vs5
Semi Finals: 1 vs lowest seeded qualifier and 2vs highest seeded qualifier
Final to be played at home ground of highest seeded team remaining
I believe this format would make for a very interesting competition, and also leaves enough time in the calendar to align the Currie Cup/Itm Cup into a gap where it would allow the Boks /All Blacks/ Wallabies to feature in these competitions and make the local derbies just as much of an spectacle.
SARU could even invite the Argentine side into the Currie Cup, considering the proximity of flying from Jhb to Beunos Aires