Love what Universal are doing with attraction additions in the parks, but this line up is not very exciting. Nothing really unique, and not very exciting to look at. Nothing here to bring me into CityWalk.
Cowfish is about the most unique fast casual concept I've heard of ever. You can't tell me tourists who stumble upon it won't be going home and raving about the "cheeseburger sushi" (assuming it can deliver the goods). If this had landed in WDW, it alone would have three threads on the News & Rumors board.
Mexican place is apparently doing a tapas-style menu. Sounds like it will be a bit different than your typical Chevys/Abuelos. What we've seen of the facade looks promising. I think we should reserve judgment. Same goes for the Italian place--it looks like they are aiming slightly higher than another Olive Garden, although only time will tell if they pull that off.
Earl of Sandwich draws a fair number of people to DTD. I imagine Breadbox might do the same for CityWalk, and if not, hey, another quick-serve option for anyone leaving the parks, going to a movie, going mini golfing, hitting the bars ...
Hot Dog Hall of Fame is just a gimmicked up hot dog stand, similar to Casey's. It's a novel way of serving quick-serve food, which CityWalk still needs more of.
Cold Stone and Menchies are exactly like Starbucks--no one goes to CW (or DTD) specifically for Starbucks, but it serves a need for those who are there anyway. I do think Menchies got the short end of the stick in location.
That said, I would like to see CityWalk's nightlife revived. Clubs are getting a bit stale, and the place never had the cohesiveness of a Pleasure Island or Church Street Station. But I don't see that doing this necessarily means they can't do that soon.