Is it worth starting a new Speculative discussion as to how to improve High Wycombe station to deliver enhanced services and an enhanced Passenger experience?
I'd there technically enough space for a complete rebuild and four platforms? Perhaps a pair of offset island.
When I look at it on Google maps, I can't quite work out if it is constrained or not.
High Wycombe is very constrained by the layout that currently exists.
There isn't much more land available towards the north without significant demolition and excavation or towards the south, which has the opposite problem to the north in that it's an embankment with houses packed tightly against the railway.
Even allowing for expansion of the current station, the former goods yard and line next to the bay platform are now blocked by the car park and station approach road.
There would have to be a very comprehensive and 'out there' rebuild to increase the platforms there.
But then you'd be faced with the problem of capacity on a 2-line railway either end of the station, so there'd be limited reason for doing it.
Even the semaphore signalled layout had constraints, but allowed for terminating trains to reverse via the Up Extension (i.e., turnback at the London end) and back.