Stephen Amell is a huge wrestling fan and that led to him both hosting RAW and ultimately wrestling at SummerSlam in a match which saw him teaming with Neville to battle Stardust and Bad News Barrett (all three of those men have since left WWE). He did a hell of a job and WWE did consider bringing him back but it never happened and he's now heading to Ring of Honor instead!
This has to have something to do with the newly signed Cody Rhodes and it will be fun finding out whether they renew their rivalry or if the two friends end up squaring off with each other again.
Whether or not the Arrow star will be able to actually wrestle is another matter as The CW may be reluctant to allow him to do so when they're in the midst of shooting the show's current sixth season.