I also question very much not only when but if this project will happen. Even Six Flags started digging its big hole for kingda ka's tower support in late may and this project is taller and needs to support much more weight with a much more elaborate structure. Yet it doesn't even seem to have all of its red tape in order. At this point 2016 seems like the earliest possible date but I'd put more money on a 2017 opening if it doesn't end up being one of those projects that stalls out. Red tape kills a lot of deals so I'm not holding my breath on this one.
As far as it not being apart of an established park...of coarse its not! I've said it the moment the polar coaster was released there are VERY few theme parks out there that are going to buy these. When a business looks in to one of these the first thing they will be looking in to buying first and foremost is whether or not they have a need for the venue on top. No one is buying this for the coaster the venue will be the ultimate moneymaker for this project, the coaster is just the sideshow. While I could see this as say a Universal hotel project with the venue on top being a hotel with the coaster underneath or maybe some international parks being interested I really don't see this being put in to the theme parks. THis will be more of a governmental/developer concept much like the "eye" ferris wheel projects. Thats just the truth