Hi all,
Next QA cycle will be starting on 31st Oct, 2016. In the meanwhile you are welcome to take a look at new Boost theme (based on Bootstrap 4) on QA site.
On QA site, you can change theme by selecting theme from header menu "Theme SELECTOR".
NOTE: Boost theme still have few known issues and before reporting any problems, please ensure it's not reported before in MDL-55070 epic.