MORE: Kings Island teases 2019 addition
And some are wondering if it could be the return of Son of Beast.
"We can't tell you much, but what we can tell you is that something old will be new again," Kings Island wrote in an email sent to media outlets ahead of the announcement.
Users of Kings Island Central Forum and r/rollercoasters on Reddit are both speculating some type of relaunch of the problematic roller coaster that was torn down in 2012 after several rider injuries.
Here are some of your guesses about what the park may announce Thursday:
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