For my first post here @ KICentral, I will speculate IMO that KI will receive a B&M Giga coaster similar to the stature of Fury 325 and maybe as soon as 2017. Personally when I speculate Cedar Fair and it's future, I look at their parks and the regions that they're located in. For example Carowinds, KD are within reasonable driving distance of each other and could be considered to be in direct compliance with each other in sharing that same market as far as guests based on location. Since Cedar Fair took the 2 former Paramount parks over, both have added/offered different attractions which were introduced at different times (years/seasons), giving each park their own special and attractive differences that give all potential guests in that region a reason to visit both parks rather than just one. It's why in this case I believe that KD will be up next out of the 2 parks, and will receive a trendy B&M such as Winged, Inverted, or even a Dive Machine to offer direct competition to nearby BG Williamsburg's Griffon which has been a BIG success in that area. I speculate this because KD already has a great Giga coaster in I305, and sister-park Carowinds has Hyper coaster Intimidator along with the brand new B&M Giga coaster Fury 325. Since KD has already announced the addition of Delirium for the 2016 season, I look ahead to 2017/2018 which will mark it's 7th and 8th season since their last major coaster and to me it's just a matter of time.
As for KI and it's future, I see them working alongside of Cedar Point the same way with it's addition of new attractions. CP has their Giga in MF, as well as TTD and now the Dive Machine ValRavn, but the one thing they're lacking is that BIG B&M air-time machine that seems to be the new trend with Cedar Fair! CP as we all know did their work early going the Intamin route, but KI more recently has gone the B&M route which seems to be Cedar Fair's current go-to manufacturer in adding Diamondback! I think it's clear and safe to say that CP won't be adding another large land-eating coaster anytime soon since they're short on land being located on a peninsula and already have existing Hyper/Giga/Strata coasters. But KI begs to differ with multiple land outlets and expansion potential along with an annual attendance of over 3 million guests which would support such a Capital Investment such as a B&M Giga coaster, plus recently in 2014 adding the trendy B&M Invert Banshee which tells me that we'll see something different next.
All in all I see both CP/KI, and Carowinds/KD always being either one-or-the-other with each never adding duplicate attractions going into the future as far as major coasters, giving each park it's own unique experience! Only Cedar Fair knows which park out of KI/KD will be the recipient of the next big coaster addition, but I'd have to imagine that they're both candidates to be up next and the question to me is which park will be first?
Just my thoughts on the future, which I look forward to sharing and discussing other member's speculation here in the forum.