Maybe they just wanted to get the concrete poured and everything read? Those permits were for "ride pad" or something similar, so this may be all they do. I watched the camera yesterday and they were not even working on the flyers at all, so either they had the day off, or they aren't going to do much more? I think they needed this in place so they can put pavers (or asphalt) around etc. Now they can get everything done when needed. Some of the ride itself is under fury and its clearly seen when riding. On the 360 POV video you can see it. I wouldn't expect it to return this year.
EDIT: the permit DOES say new ride 2018....so I might be wrong on this one. I just done see them moving the construction walls back and opening it for like a month, maybe 2. I guess we will see. I will be more of a believer if they star building the ride itself in the coming weeks.