Above is the annual "WWE Future Endeavors" video from YouTube user mangler989. He says 2016 may be his last year doing the video, which has become a tradition in the IWC.
The term "Future Endeavors" means any future pursuits that you may be involved with. The phrase "Best of luck on your future endeavors" means that someone is wishing good luck in whatever you do next. It is said to anyone who leaves a job, whether they were fired or if they quit.
This video is made for the people in the WWE that were released from their contracts in 2015 (be it they got fired, they quit, or they let their contract expire). No referees, agents, office personnel, or part timers, are in this video.
There may be people missing in this video and the dates may be off a little. I lost the master list and had to try to recreate this from memory.
This may be the last year I do this.