Ryck, Office 2016 is 64 bit no?
I believe so, as I haven't heard otherwise in this thread.
And you are saying, for next 5-6 years, it could have security issues for the Mac OS if Microsoft drops the ball and does not send the usual updates we have been getting over the years with 2011?
This is what I'm thinking:
• We have come to the end of updates for 2011 so we'd have to rely on 2016 to maintain security and/or other improvements.
• Microsoft's words inject some doubt about getting the 2016 updates without a cost. I hear what artie is saying about the assumption that updates should be provided as usual. Maybe I've been involved with various versions of contract language too long but I've always found: "The words matter".
• If updates have a cost, it wouldn't be Microsoft "dropping the ball" but rather enhancing their bottom line as grelber earlier opined. And, if that's the case, it may or may not be an issue if the charge is small.