Google pushed an update to the Currents app today which officially takes it offline. If you were to launch the app now, all it would do is present you with a
The Currents app even goes so far as to clean up after itself. When you run the updated version of the app and tap through to Newsstand, Currents will clear its app data and disable itself. Given that the update drops the storage footprint of the app from 5.4MB (plus news data) to just 860KB, it won't make much of an impact on your device even if you don't fully uninstall it.
If you are a Currents diehard, the old version of the app still works, but it is unclear if that will continue.
source: Android Police