In addition, The CW DC shows have already decided they want to make sure John Constantine is still a part of the world—or really worlds—the network has built.
Unfortunately, we’ll have to wait a little while to see John Constantine back and in action.
The big announcement (via THR) indicates that the return of Constantine, albeit in animated form, will not happen until 2017-2018.
Right now, all of the episodes of Constantine are currently available on The CW Seed.