It seems that IHS iSuppli has been taking a look at the production line for Apple's new tablet and has been generating some data on what we should expect. And, IHS iSuppli has told CNET that "Based [what] we are seeing in the [production] pipeline...The volumes are similar to the iPad Mini that we saw in Q4 of last year."
This is especially interesting, because it could point to when Apple will release the device. If Apple has produced about the same volumes as we saw last year by this point, it could mean Apple is aiming for the same November release for the new iPad mini Retina.
The iPad mini Retina is expected to match the current 9.7-inch iPad 4 in resolution at 2,048x1,536. On the iPad mini's 7.9-inch display, that would equal a pixel density of around 332PPI, which is about the same as the new Nexus 7.