Malmö: https://en.wikipedia.org/wiki/City_Tunnel_(Malm%C3%B6)
Proposed lines: https://en.wikipedia.org/wiki/Category:Proposed_rail_infrast...
I can't see a Wikipedia category for recent extensions.
It will very often make sense to connect the hundred year old station to a new major line, but as with Leipzig and Malmö they also build additional stations in the centre of the city.
Malmö: https://en.wikipedia.org/wiki/City_Tunnel_(Malm%C3%B6)
Proposed lines: https://en.wikipedia.org/wiki/Category:Proposed_rail_infrast...
I can't see a Wikipedia category for recent extensions.
It will very often make sense to connect the hundred year old station to a new major line, but as with Leipzig and Malmö they also build additional stations in the centre of the city.