The very small footprint limits what can be done with the space. Fallon was best when the preshow regularly had the Ragtime Gals and the panda performing most of the day. That was a real highlight. I've rarely seen the singers the past few years. As for those who imagine a prominent NBC lobby as a walk through attraction replacing the ride, I would think no. We've been on the ride 'lots', since it's Alenes' fav ride in the park, but I've yet to see anyone, besides myself, spend any time looking at the NBC Today show displays.
Now, I'd expect the park realizes the film will have a finite lifetime, due to the nature of its content, so I guess there's long range plans to replace the film with another film when the time comes. Once Simpsons closes there will be one less simulator in the park, so Race won't stand out so much.