The whole "how do we serve the Sheffield area" saga is not an easy one. Putting the HS2 main line via central Sheffield would be very expensive, and hugely disruptive to the existing railway, but would provide the greatest benefit to Sheffield itself. The original planned station at Meadowhall was a compromise in that it was a location on the preferred through route to Leeds which could serve as a railhead for the entire South Yorkshire region - including Sheffield, Rotherham, and Doncaster. The local machinations of the Sheffield City Council saw Meadowhall scrapped and a new route devised through South Yorkshire, but with a promise that SHeffield would get its own HS2 trains serving the existing Midland station. So instead of SHeffield being served by through trains to Leeds / Newcastle (as would have been the case at Meadowhall) now it has its own dedicated trains to/from Euston, possibly linking up with other sets at Toton.