So for those comparing this artwork to the Red Car Trolley at DCA, there's good reason for that.
They literally just switched a few things around from the RCT attraction poster to create this mural, most notably replacing Carthay Circle Theatre with Tower of Terror. They also changed minor things like the tagline at the top, the destination on the trolley car, and the name of the electric company at the bottom. Other than that, it's the same poster.
I wish this was some sort of hint that Trolley transport was in the cards for the park in the future, but i'm pretty certain it's not happening. It would add much needed kinetic energy, however.