Still not getting what your saying.
Are you saying that they wrote that there will only be iris pro chips in the new rMBP (Iris pro cpus are NOT exclusive to apple)
Or are you saying that there will be a dGPU option or even a "Unreleased/Unannonced" beefed up iris pro from intel that is exclusive for apple?
Apple has new deal with Intel to deliver special versions of high-performance Iris Pro for rMBP. That's what the article is all about. You won't be able to get this version of Haswell chips from any other manufacturer.
Standard Iris Pro will be probably in the base version of rMBP since the special high-performance will come in limited quantity, but that's just my opinion.