Update 10/17/14: Play Store 5.0.32, a small bump over 5.0.31, is now available for download.
Update 10/31/14: Play Store 5.0.37, a bump over 5.0.32, is now available for download. It comes with at least one new change - a new permission bucket called Wearable sensors/activity data to help explain permissions for apps that can grab data from wearables, such as heart rate monitors.
Of course, as I have to pick up my son from daycare, breaking news had to hit, and Google had to start pushing out the Play Store 5.0 update (5.0.31, to be exact).

[Update: 5.0.37] Google Play Store 5.0.31 Adds More Material Design, Moves "What's New" To The Top [APK Download] was written by the awesome team at Android Police.