The Begining of the End for ANT+ Wireless (dcrainmaker.com)
First off, no, your ANT+ devices aren’t going to stop working. In fact, companies are not only supporting them going forward, but will continue to make ANT+ devices for some time to come. Instead, ANT+ (or more technically, Garmin), has announced a policy change that effectively and officially ceases the development of new ANT+ standards. Though practically speaking, that mostly happened long ago.