Qwerty, I'll respond to your post but not all my comments are directed towards you. Some are in response to other comments.
First, there still seems to be a lot of confusion around what is being proposed. Whether that is on the part of people whose posts I don't understand, or on my own part, I guess posters have the opportunity to clarify for me or those I think have the bull by the horns.
In my understanding, there is a distinction between the domestic/TT competition and the Super 8. They are not meant to be alternatives. Either a domestic comp or a TT (involving all 5 Aus sides and maybe a PI side) will start the ball rolling. Before or after the various city-based premier competitions, I'm not sure.
The Super 8 is essentially a Championship style of competition involving the top 2 sides from the domestic competitions (or 4 from the TT if relevant - 2 x NZ and 2 x Aus) from each of 3 countries (Aus, NZ, SA) and one each from Japan and South America (interestingly, apparently not necessarily Argentina) - hence 8 teams. The teams involved will or might change year to year depending on the results of the individual competitions they come from. So, not necessarily same teams over and over again.
I do not see, personally, where any mention has been made of a PI team in the Super 8 comp. There has been talk of a PI team in a domestic Aus competition, but again, that is a different beast to the proposed Super 8.
Now, that's my take on matters atm. Please feel free to criticise or clarify if I've misunderstood the proposals.