Let's try to get this rolling... with trains?

So in 2035, will Bristol have taken a leap back to the future to restore the commuter rail service that vanished from the Mum City half a century ago? Will there be a train station or two? How would it matter to the lives of Bristol residents if we have rail? And what if we don't? How will people get around on roads that already seeming ever more congested? Is there another answer? What does the future hold?