Not to get too terribly off topic, but the Fields developer is already doing something very similar to city walk, but would be more upscale. It's called "Fields West" if you wanted to search for it, about 425k sq ft of restaurant, retail & entertainment planned to develop there on the other side of the Tollway from the park. There have been a couple of posts out there by the Mayor and a couple of city council members that have suggested that Universal may be open to putting an NBC Sports Bar / sports oriented concepts in there - it would work really well with the heavy sports oriented nature of Frisco.
No offense to City Walk, but when I search for the Orlando one and look at dining options - I see drink options like Fat Tuesday and a Burger King Whopper Bar. I think to do well in Frisco it has to be much more upscale, Probably some sweet-spot of convenience/practicality for families coming in for a couple of days to go to the park but also more upscale to attract locals & the PGA crowd for long-term sustainability - especially with the 4/5 star hotel options that will be there like the Omni at PGA, and there are already 7 planned Marriott hotels in this development, including Ritz Carlton, Autograph Collection, JW Marriott, Westin - their more upscale brands.
The developer of Fields developed a very popular similar development down the tollway in Plano called Legacy West - it is fantastic, but for the most part: the dining is pretty upscale along with the retail (think Tiffany & Co, Gucci and Louis Vuitton type luxury shopping). Lot of Frisco locals will make the drive down there for outings, so the idea of putting that right in the city would be really appealing so that people would not have to leave Frisco for that type of experience.