#2 Elias

Another man who has had a great year in the WWE is Elias, whose gimmick has won him many fans, and he's destined to be a top player in the WWE for the next decade or so. Elias and Lashley have history, having faced each other at TLC, as well as a few times on RAW.
Elias' character has evolved significantly over the last year or so, and he's one of the few Superstars who gets a huge pop every time his name is mentioned.
We could maybe see the two re-ignite their feud at Royal Rumble, and then maybe have a match at Elimination Chamber.
Like Apollo Crews, Elias hasn't held a title belt on NXT or RAW, and I think it would be safe to bet on him winning a title by the end of 2019. The Intercontinental title could be the first one that Elias wins.