Yes. We work within the constraints of the national rail network, so the route or stopping points can occasionally change. Your travel documents show the latest confirmed arrangements, and if a change affects your journey we'll write to you; that update takes precedence over the general information here.
A change of route or stopping points isn't a major change unless it also changes your departure point or destination by more than 50 miles, or your timings by more than 12 hours (5 hours on a day trip). If we can't serve your stop and offer you an alternative station, that's our change, and it's never treated as you leaving the train early.