After that date, those features may not be maintained. But certain features like Search Merge (adding records/sources from the Ancestry website) and Tree Sync (linking a tree in your FTM program to an online tree at the Ancestry website) will only be supported until January 1, 2017. Users of Family Tree Maker (FTM) can continue to use the program. But just to clarify, the website is not being discontinued just the Family Tree Maker genealogy program that is installed on a computer.
As you have probably heard, is discontinuing sales of its Family Tree Maker 2014 program on December 31, 2014.