The building itself is a lot further along in construction than Pop Legendary Years was. I think the physical building will be finished. However, if market forces don't support the cost of a totally immersive hotel experience, they have several options. They'll either
1) Lower the price
2) Set it up like a regular hotel, at least temporarily, without the immersive factor.
3) Let it sit, without furnishings and vacant, until it is deemed financially viable.
4) Open it in a more limited capacity, leaving part of the guest rooms unused, cut down a bit on paid roaming characters and open it in phases as needed.
I think numbers 1 or 4 are the most likely scenarios.