Ancestry have added a bit since yesterday, which I think makes the situation clearer:
http://blogs.ancestry.com/ancestry/2...ktop-software/
The most significant statements on it, I think, are:
"Most Family Tree Maker features are designed to work offline, and should continue to function unless a change on your computer, such as an operating system update, causes the functionality to break." According to my personal computer man, updates will ultimately be FTM's biggest problem.
"You will continue to be able to access your data through the desktop software beyond Jan. 1, 2017, however over time there will be a gradual degradation of features. You can always export your tree and save it." Not quite sure what that means in practice, but it doesn't sound good.
However, we have until 2017 to get sorted out.