Hey,
So if we go for the 12v, the connectors on the boards will remain 4 pin molex, but the connectors on the miniplanes and doubles scrolls will change to 6 pin molex. On the miniplane, probably only one will be required, but we may put 2 on just to make sure you'll get enough power. The double scroll will have 2 for sure. This means for all you ex GPU mine heads, your giant PSU will potentially be able to run four double scrolls.
Here's a picture of the 6 pin molex connector.
And just for the sake of it, here is a picture of my old GPU rig. R.I.P .... Soon to rise again Drillbit styley!