^Yeah, we're talking about that one in the Dollywood board (listed under "Other Parks").
SDC and DW seemed to swap big attractions for awhile, especially throughout the 2000's, but now DW has been set apart for it's own course. HFEC has decided it will be the flagship property and will invest a staggering $300 million into it within a decade (with a large chunk of that going into a resort).
So that does seem to limit what they're going to do at SDC for a little while. I mean, obviously we're still getting some fairly decent investments at the moment, but we're definitely not on the same growth trajectory anymore. I don't know if they'll build two large coasters in the same year... I don't think they've ever done that, but then again they're building Fireman's Landing at the same time as the massive DW resort, so who knows.
I wouldn't hold my breath though. If the numbers from this year are really good, then we can start expecting something good, but if they're so-so then I think we'll probably be stuck in the usual trajectory, ie: a decent sized investment every other year. Since SDC isn't the focus of the chain anymore, attendance numbers will have to speak for themselves.