Special mention: Dean Ambrose

Dean Ambrose may not get his mandatory rematch, with WWE having buried the "mandatory rematch clause" that was used by many Superstars after losing their belt.
Ambrose's feud with Rollins seems to be coming to an end as Rollins possibly sets his eyes on the big prize, the Universal title. We will probably see Lashley and Ambrose battle it out in the weeks to come, and maybe even after Royal Rumble.
Both Ambrose and Lashley are heels, which would make it tricky to get a compelling storyline. WWE could maybe add another person in the mix - possibly a face, to get the crowd invested in the feud.
Ambrose held the Intercontinental title for just 29 days, having won it from Seth Rollins at TLC, in December, and will be itching to put gold around his waist once more.