The website has been updated, it looks like the park has gotten a namechange and will now be called "Thor’s Rike - Viking Adventure Park"
Welcome to Thor’s Rike, the largest theme park in Norway. Here you’ll find everything from thrilling rollercoasters to the experience of authentic viking raids. The park is designed by ITEC Entertainment Group, and is planned to be open by the spring of 2018.
More concept art has been released, mostly in the video in the link above. This is a lot more specific in terms of what rides to expect. In terms of rollercoasters there is no doubt they are planning to build a wooden rollercoaster. The footage in the video is of Wood Coaster @ Knight Valley, but I would not take this as confirmation that theyre specifically planning a GCI.
I have been a bit pessimistic about this project, and I have yet to see a confirmation that the park will actually be built, but with more concept art being released theres no doubt that there is at least some kind of progress on the project and that is always exciting!