10 Future WWE Grand Slam Champions
1. Kevin Owens
Kevin Owens is a prizefighter, so let's finally give him a "Grand" prize to fight for. All KO needs left is a tag team championship reign. Not only is that easy to set up with his buddy Sami Zayn, but it could lead into some fantastic storytelling.
Kevin can cut a promo acknowledging how he only has one championship left before claiming "the ultimate prize". He can go around looking for just the right person to use that'll help him achieve the success he's looking for before a returning Sami Zayn shows up. This leaves a house-shaped window of opportunity to take the story in any direction the writers see fit. KO & Zayn can simply win either brand's tag championships and become a dominant team, or they could win the titles and then Sami is immediately turned on by Owens who "needed a tool to borrow to achieve his goal". Sami could initially be reluctant to helping Kevin, knowing of his greedy ways, or maybe Sami could be completely oblivious and the story ends up long-lasting.
There's so much potential here that at least three different storylines basically write themselves. Any which way you write it, the ending remains the same: Kevin Owens achieving Grand Slam Championship glory.