Scheduling and managing events using Outlook.com calendar
Don't hold your breath. So far Microsoft has done absolutely nothing in the year or more this thread has been running, other than utter meaningless platitudes about how "I'd be glad to assist you on your concern with regards to syncing your Outlook.com calendar to Google calendar."
It can't be a difficult problem to solve. Clearly Microsoft isn't interested in doing so.
It is not a difficult problem to solve at all. The idea solution would be to simply implement CalDAV in the Calendar App. This would take one programmer about a day worth of work. It has already been implemented on Windows Phone 8.1.
This is the single largest complaint I have with Windows 8.1 and it might be the deal breaker when it's time to upgrade my Surface 2.