I would do 3 things with Disney Springs due to empty space and quality control. I'm doing something with it because its part of WDW property.
1.) Empty space where Wolfgang Puck Express used to be gets changed to Disney Marketplace Burger and Frozen custard Shop. Disney will own it. There will be different types of burgers and toppings there. The sides will onion rings, French Fries, and deep fried cheese curds as options. The drink options are Coca Cola products, Float, Frozen Custard sodas, shakes and melts. Every day would have 5 flavors of frozen custard with them being Vanilla, chocolate, putter pecan, Flavor of the day, and Flavor of the month. Sundaes are offered including Sundae of the month. The sundaes would be Disney theme, Marvel theme, Star wars theme, Pixel theme, or Fox themed. There also would toppings for the frozen custard sundaes.
2.) I would have a food quality team to Keep an eye on 3rd party food vendors including Planet Hollywood observatory. Planet Hollywood has a well known bad reputation for food and service for years. If there is poor quality food served on a regular basis, the place is gone after the contract is up. Replacement would be an existing place or Disney will be operate and own a business there.
3.) NBA Experience building gets a permanent replacement. I would look at Virtual Reality attractions or a Disney Quest 2.0.