You could also direct Leeds to Carlisle trains through another major centre without the need to reverse.
Other than significantly slowing down the bi-hourly Sprinter to Carlisle (which is seen as a fast route from Leeds to Glasgow on other threads!), what genuine benefits would you get from the hundreds of millions of pounds needed to implement this project?
Would Bradford get any increased services/ new destinations? Other than potentially slowing down the Carlisle services, this doesn’t provide any improvements for Bradford that couldn’t happen anyway
Are there any huge cross-Bradford flows that demand a through service? Ilkley/ Keighley to Manchester would probably still be faster via Leeds. There’s no cross-Bradford bus services other than those confined to the city boundaries (AFAICS?), so it’s not as if there’s demonstrably some huge market for something like Skipton to Brighouse
Since only one side of Bradford has electrification, would your project involve wiring of the Calder Valley (inc to Preston, Huddersfield), or replacing EMUs through Shipley with DMUs since the line South of Bradford lacks wires? Because another hundred miles of electrification is going to make this even more expensive
I suppose the one consolation is that we’ve got this far in the thread without anyone doing the traditional suggestion of “Leeds - Bradford - Leeds” circular on LNER services!