Extremely unlikely to give unfettered lounge access. If anything I expect it'll be one pass to the QP, along the lines of Silver.
I am in interested in seeing this part of the plan when it is revealed in detail. They (QF) have to tread carefully here, because the whole point of SC and the corresponding tiers is that it rewards those who actually fly the airline i.e. buy flights. Some other OW carriers used to offer status based on credit card ownership (I know that CX offered OW sapphire through an AMEX card, which they have now stopped), but apparently these loopholes are being shut down because it was beginning to devalue status - i.e., status was designed for those that fly.
A friend of mine working at QF check-in says that prior to the current upgrade system (whereby it only allocates upgrades 24 hours prior based on status), he would see TONS of bronze FF members with points upgrades to First. That's part of the reason they changed it to the 24 hour thing - because they needed to reward their actual regular paying customers.
So, by offering some kind of yet-to-be-revealed "perks" to the bronze members with a zillion points, they could devalue the perks for the existing elite frequent flyer posse. I am sure that I am not the only one, who every time they enter the SYD/MEL/BNE Dom J lounge, wonders "are there really THAT many plat frequent flyers"? I swear, sometimes the J lounges seem busier than the QC. At certain times of the day I can't even be bothered going into them. So if part of the new points club involves lounge access to more members, it could make an already not very exclusive club even more not exclusive.
Using the conservative rate discussed in the article below, a person with 150k QF points earned exclusively through non-airline related credit card transactions "cost" the credit card company about $2,100 - assuming that's what it paid QF for the points. What we can be almost sure of is that whatever the card company pays QF is certainly less than the MSF, which sits around 1.5% - 3%. Otherwise the whole reward scheme makes no financial sense for the card company.
How much do credit card companies pay when you convert your rewards into airline or hotel points? Here's my guess, based on some clues.
onemileatatime.com
Now, as we all know, unless by way of some DSC-driven crazy status run, spending $2,100/year directly with the airline is not enough to achieve or maintain Gold - not really even close assuming normal domestic travel patterns.... maybe at 1,000,000 points (approx. $13k) we would be getting close... but that's a lot of points. In a single year. Even with accelerators, like 3x points for certain purchases, we are still talking about annual credit card spends of $300k... which is not most people. And those that DO spend $300k/year on credit cards, are more than likely Mr Important Business Man, and he is probably flying anyway - OR - he is a tradie or builder that charges all of this supplies on his AMEX card (I have a friend that does this) - but I think this is not the normal scenario. This friend of mine takes his whole family, once a year, on a holiday to the US in J and it costs about 1 million points + taxes. Other than that he never flies. He is really organised and books a year out based on what dates are available for award seats.
Anyway, I guess we have to wait and see....