Is Агент coming back?

Агент ended 20 June 2013 on Россия 1. The show aired its final episode on that date.

Агент was a Russian adventure, crime, and mystery series that premiered on 27 May 2013. It followed the story of Andrei Kozyrev, a secret agent of the special services who was unjustly convicted of murder. After making a daring escape from a colony, he sought to find his enemy, prove his innocence, and prevent a deadly virus from causing mass casualties.

The episodes each had a runtime of approximately 45 minutes.