What about P/C? Their development was "in the background" for the last few years, but really came to the forefront this season. They're younger and energetic, and could technically develop even further. Both V/M and D/W were young at the start of the 06-10 quad and by the end of it they were dominant. Just a thought.
Just a side note ... then we can resume talking about S/K again.
If P/C manage to keep improving I think they will be among the front runners for 2018. They have qualities that the other teams don't have, such great musicality, a beautiful flow on the ice and a great partnership. All they need to do is continue to improve the tech stuff. Personally, I prefer their style to C/B. It's not their time yet, but it will be. As for W/P, as much as it pains me to say this, i think they've peaked and I don't really see them climbing to the top as we know ID doesn't favor veterans.