Vine has finally provided an exact shutdown date. The Twitter-owned app is closing on January 17 and the only thing that'll remain is "Vine Camera," which lets you record videos in the classic Vine format. You can use the app to capture 6-second videos that can be sent to Twitter or saved to your phone.
Update - the Vine app will become the Vine Camera on Jan 17. Please download your Vines before then! More here: https://t.co/zrE1oDTx48— Vine Creators (@VineCreators) January 4, 2017
The actual network part of Vine is what's disappearing. There will no longer be a network made up entirely of Vine content. You'll likely still see the 6-second videos elsewhere on the internet.
Vine's website will also remain live, operating as an accessible archive.