#4 Zack Ryder

I can't really remember the last meaningful storyline Zack Ryder was given. His current losing streak storyline in a tag-team with Curt Hawkins may be the best thing he's had going for him as far as regularly appearing on RAW is concerned.
However, we still don't know how far this story will go and if WWE has any plans for it. Ryder may be one of the WWE Superstars keeping a close eye on developments at All Elite Wrestling and thinking about asking for a release.
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#3 Shelton Benjamin

Shelton Benjamin's return to WWE started off with his tag-team with Chad Gable where Benjamin replaced Jason Jordan who was drafted to RAW after being revealed as Kurt Angle's long lost son.
Since then, Benjamin hasn't really had much time on television and has only made rare appearances. Benjamin could be nearing the end of his career and could be looking to leave for a promotion where he can have one last proper run.
Becky Lynch has been challenged HERE.