When is this site moving to HHVM for the backend?

http://phoronix.com/scan.php?page=news_item&px=HHVM-Lockdown-Perf-PHP7

Since this site uses Drupal and other PHP code, has there been any thought in moving the site over to HHVM if you haven't already? The performance improvements are crazy.

https://github.com/facebook/hhvm/wiki/Prebuilt%20Packages%20for%20HHVM