I mean, obviously there's still a bunch of record categories that are up for being cracked by CP, but the question is if CP is up for being gimmicky again (as with their last 2 B&Ms, sorry) or if they want to break into the world-class category once more after Steve.
Someone mentioned a wooden coaster, and already I can see a bunch of problems with what CP might want here:
obviously a GCI would fit into their line-up perfectly, but theres 2 major issues here: breaking a World Record with a GCI is near impossible, and they also have Mystic Timers in KI, and Cedar Fair has done a really great job in the past in keeping CP and KI apples and oranges. A GCI in Cedar Point might just cannibalize the best coaster in KI, and why would they do that.
If they want to break a world record with a Woody, there's no way around an Intamin-Woody. They could to world's tallest and world's steepest, up their Hypercoaster-Count to 7 (!!) and if they're being really extra, they might do the world's longest (even though that's one of the less likely categories imo). Would they start working with Intamin again though? Especially for a somewhat "exotic" model in their portfolio, where a typical business-mindest just sees problems arriving left and right? I really don't see it, even though an Intamin Woody would be near perfect for them.
Another thing could be a 15 inversion coaster. Personally, I think that would be a great replacement for Corcscrew. It would be somewhat easy to keep the double corcscrew over the midway, and this coaster really doesn't provide enough historical relevance compared to some others (especially New Revolution) to justify this poor ride experience. I just don't know who's supposed to build a coaster like that. Gerstlauer? At CP? Really? I mean, they've got in touch with each other at Knott's but that doesn't have to mean anything. If you're looking for a compact sit-down multi-looper with a steep drop, well no surprise you ended up with Gerst. Also, since (at least the way I imagine it) this would be a replacement, I don't see them doing it before they cracked the 20-coaster-mark. I mean, they could also include the world's steepest drop into this, then there's really no way around Gerstlauer, and if CP has any interest in that category, they better hurry up because it's just a matter of time until somebody builds a 179-degree coaster and then we're officially capped out.
Then we're left with family and flying-coasters, and those are both categories that scream Vekoma. I'm still surprised that CP went with Valravn (sorry, but that coaster really does absoulte zero for their line-up) instead of a B&M-flyer, but with F.L.Y. opening next year, maybe they just were waiting for additional options since they were not satisfied with the possibilites B&M's model had to offer them. I doubt it because Valravn also has some serious issues that give the impression CP doesn't care about the actual ride experience beyond world records, but on the other hand Steve proves that wrong again. But even if a flyer is not in the cards, what speaks against replacing Iron Dragon with a Vekoma Suspended Family Coaster? Make it the longest in the world, include a "family-friendly" LSM-launch and some wacky maneuvers, why the heck not? Especially in Europe, the market for family-coasters is thriving, and I don't see why that trend shouldn't be able to make it across the pond.