You may have noticed that Slackware 14.1 have been released few days ago by Patrick Volkerding. It's another great release after roughly 14 months of development with a Beta and 3 RC releases. Many people will actually love this version, mostly when they have a new system that utilize UEFI on it, as Slackware has fully support of this, except for Secure Boot, which will be baked on the next development cycle.
Usually, when Slackware gets a new release, SBo project follows soon by providing repo for the current Slackware release, but unfortunately, that will not be the case for now. The admins and the maintainer are still testing all the remaining scripts so that they are compilable, buildable, and running fine on Slackware 14.1 machines. This is not an easy efforts, as they have to test all scripts, including new dependencies, incompatible versions, broken source, unmaintained upstream source, and many other problems.
Asking on when will the repo ready will definitely not help much. What you can do is install Slackware 14.1, clone the master branch of SBo repository from their GIT repository and test any SlackBuild that are still in the CHECKLIST (It's a HUGE list of scripts there) and test them on Slackware 14.1. If it's working fine, you can report it to the SBo's mailing list. If it's not working, you can also post some solution for us. That surely help the admin to clear out the Checklist. Once the checklist is cleared out, the repository you are looking for will be ready and available :)
ponce has given a simple howto to use a master branch on git rather than using a stable 14.0 repository if you want to help on testing SlackBuild script for Slackware 14.1. Here's how: http://pastebin.com/jRPYQsVL