Microsoft has published the RTM edition of SharePoint 2013 product on the MSDN Subscription website. If you have subscription account whether MSDN or TechNet, you can get the RTM package installation. Log in to MSDN Subscription website using your valid account and then click Subscriber Download.
In terms of the release road-map, Microsoft announced, in this post, that Volume Licensing customers with Software Assurance will be able to download the Office 2013 application as well as other Office products including SharePoint 2013, Lync 2013 and Exchange 2013 through the Volume Licensing Service Center by mid-November. IT professional and developers will be able to download the final version via their TechNet or MSDN subscription by mid-November. However, these products are available earlier than your expectation. Shouldn’t you be excited?
Stay turned !