>>1023597>Will this ever get extended any further?Not really. At least not for now. There has been talks about extending line A a bit after Farum. And the regional railway north to Helsingor (kystbanen/oresundstoget) will get a "S-train-like" signal system.
Further, there is desparate need for extending the capacity between KBH H and Osterport, as the track already sees up to 30 trains an hour now.
The next time we get new trains (likely startin in the mid 2020's), they will be driverless and run in a metro-like pattern. This would increase the overall capacity quite a lot.
Finally, a light rail/tram from Ishoj to Lyngby is scheduled to open in 2023 (pic related)