Complex sentence: A two-station branch towards Nordhavn is planned to open in 2019, as well as an expansion towards Sydhavn, which will involve a linkup with Ny Ellebjerg, a station located on the S-train and regional train network.
Split into simpler sentences: A two-station branch towards Nordhavn is planned to open in 2019. An expansion towards Sydhavn, is currently planned involving a linkup with Ny Ellebjerg on the S-train network.