WWE Universal Championship- Roman Reigns. He's beaten the Undertaker and John Cena, and now he has to finalize his position and be the one to slay the "Beast" Brock Lesnar for the WWE Championship at WrestleMania, like he almost did a couple years ago.
WWE Championship- Nakamura. The anticipation around his potential matches with AJ Styles could really put them both over the top next year.
WWE Raw Women's Championship- Asuka. Her recent segment with Alexa Bliss was only just confirmation as to what's been brewing all along. Alexa was on a hot streak all year long, and now she's on Asuka's time. Get ready for her to assume the position of Roman Reigns, as she takes the title off of the Brock Lesnar of the Women's Division.
WWE Smackdown Women's Chamionship- Carmella. She really can't hold off on cashing in her Money in the Bank briefcase forever. The new year is coming, and before you know it, the next Money in the Bank winner will be crowned. She really can't wait until then, or else her own win will have amounted to absolutely nothing but a waste of time on WWE's part for taking the first ever women's Money in the Bank winner for granted, which is happening right now anyway.
WWE United States Championship- Jinder Mahal. He may not be WWE Champion anymore, but he's not done shitting on America. A U.S. title win for him would mean a big loss for the country, and a big win for whoever takes the belt off of him(probably either John Cena or Bobby Roode).
WWE Intercontinental Championship- Samoa Joe. Roman Reigns has bigger fish to fry, and Samoa Joe is worthy enough for him to drop the title to, not to mention the most successful in terms of beating him.
WWE Smackdown Tag Team Championship- Rusev & Aiden English- Rusev's support is undeniable right now, even though he's coming off of such a bad year. I think next year will be the complete opposite for him.
WWE Main Stage Breakout star for 2018 to become a 1st time belt holder in the big league- Either Nakamura or Braun Strowman.