While they could much easily fix up Vikings rather than adding a new attraction, I just can't see it happening. It's been sitting there empty for almost 5 years now, and the reason it closed in the first place (correct me if I'm wrong) was partly because of the TRR incident and from what I've heard there were parts of the trough that were damaged. When Vikings closed for maintenance after the TTR incident the park removed some parts of the ride, and I doubt they would still be holding onto those most likely out of date components.