This thread seems to be about evenly balanced between plausible analysis on the one hand and superstition (including numerology) on the other hand.
The idea that Apple would have a new Mac model ready to ship and then would delay release to be either nearer to or farther from the release of Mavericks or an iOS product seems to be without any basis in history, logic, or reason.
You really think Apple would release the rMBP today? 4 days after the iphone 5s and 5c? If it were ready to ship now perhaps they would have shown it at the iphone event.
History would suggest that Apple haven't silently released a major product change at the same time as another major 'event' product.
BUT, will the new rMPB be just a spec bump or a major revision???
The rMPBs aren't ready. How can I be certain? I can't, but we haven't seen any leaks... nothing apart from some benchmark from months ago. Every apple product release is usually preceded by some hardware leak in the week leading up to its release.
I'd also put money on the new rMBPs shipping with Mavericks meaning they aren't coming until end of Oct/early Nov at the earliest.
It'd be a pain in the arrse to get it with ML and then a few weeks later have to upgrade the OS.
Of course, this is all pure speculation on my part. As Manuel says, "I know nothing".