The whole reason Universal is willing to put up such a huge price tag for this stuff is because it's an entirely new park. New park means hopefully longer stays at hotels, which means 4-park ticket options, which means more chance of people buying merch or eating at a Universal restaurant, which means much higher earnings.
The whole point here is to increase stays and expands the resort. I highly doubt they abandon this plan unless circumstances prove to be dire economically for UPR.