There's plenty of wasted space inside both parks that can fit a restaurant or two. Plenty of room in Jurassic, NYC, Seuss, etc. The list keeps going on and on. Restaurants don't really take up that much room, look at Liberty Tree in MK for example. The restaurant is pretty small but is arguably one of the most popular in the Magic Kingdom. They use the space wisely, sharing a kitchen between 3 restaurants (Skipper Canteen, Diamond Horsheshoe, and Liberty Tree). Even if the kitchen was solely dedicated to Liberty Tree, it still wouldn't be huge. Also, Universal can convert some of the existing quick service locations that are not as popular to table service as well. When was the last time you saw Schwab's Pharmacy packed? Expand the building in the back (there's room), and turn it into an old fashioned soda fountain restaurant. They can even share a kitchen with Mel's!