I don't know if finances are an excuse for a ride delay, usually payments for rides like this are made far in advance. It may account for some changes, but I don't think anything drastic.
In terms of the ride not opening on around/before the summer season, I think that give it another 3 months and this will be near completion. Already from the past aerial update to the one we saw about a month ago we've seen some serious changes. I think we may be surprised by how many changes we'll be seeing in a month from now. Now I'm not super knowledgeable on construction, however, there is the possibility that construction may be expedited due to the fact that Ray Rush construction is wrapping up, hopefully some of those workers will make their way to this site.