When I went through the other day. It occurred to me the curve tunnel could be used. Normally only used by freight trains to turn sharp left from MML to Hope Valley line, or vice versa. I noticed there could realistically be another chord into the tunnel. Trains would leave Sheffield, fork right onto Hope Valley, stop, carry on and go sharp left into the tunnel and rejoin MML, and vice versa. It would allow the Leeds-Nottingham semi-fast to stop. And give Norwich/Nottingham-Liverpool trains the option of missing Sheffield - saving a good 20 minutes on through services from East Midlands to North West.
There is more to come on how Dore will look in the future. It was reported in Sheffield that the HS2 budget includes improvements for links to the proposed station at Meadowhall, including a Supertram extension alongside Network Rail tracks between Sheffield & Dore. This will have been thought about. As will how to tackle the reaction of the affluent NIMBYs who live near Dore station.