For me, I'd say these are likely to hit $100+ next year:

Waves - due to new DEX, NG, smart contracts coming, growth of russian icos
NEO/GAS - cus choyna
OMG - cus asia/imagine the pull they'll get by becoming a crypto gateway for onramping
PPT - Invoice factoring will be yuggee
LTC - c'mon we all know this lol
VERI - targeting bigger funds first rather than plebs first
SALT - you'll see...
PLR - if they can really achieve their awesome roadmap within schedule and have wide adoption of their wallet by many of the hot icos coming next year

These have potential to hit $100 in that time-frame too but yet less likely to do so in 2018 (I hope I'm wrong and they do go to $100+ in 2018 though):

Ardor - mainly due to the same lack of powerful marketing that caused nxt to not reach anywhere substantial in price. Maybe 2018 will be different with lessons learned?
IOTA - possible but may take more time to build that kind of traction with their real world IoT projects plus hype from their ternary chips. higher probability in 2019.
ARK - should their cross chain stuff come together nicely
---
there's probably more I'm sure that's gonna break that $100 barrier