It is going to be a while, solely because everyone in Jackson would get all butthurt that their property values will go down approx 1%. People are taking out 1 page ads in the paper to prevent a 1.2 mile connecting road from getting built. Can't imagine what making the pass easier would result in.
Neckdeep is right about Rexburg, that place is the pits. However, from everything I've heard they profile hard. So don't drive the VW bus or Subaru with Dead stickers on it, don't have dreadlocks or be brown skinned, and no one blinks an eye.