Park News - Nothing is known at this time...
2017 - Loke - (10/4/16) Liseberg has posted a video showing off their freshly announced new plans for the 2017 and 2018 seasons, enhancing the area of the park around the Balder wooden coaster with more Norse myths. In 2017 the park will add "Loke", an arch-nemesis of Balder, which will take the form of a giant swinging pendulum style flat ride (Intamin Gyro Swing) that will stand 26.5 meters tall, swinging riders over 41m into the air at each end. As rumored, Loke will be replacing SpinRock.
(9/16/16) Screamscape has been informed that Liseberg will announce new attractions for 2017 and quite possibly 2018 sometime later this month. Meanwhile a post at ThemePark.nl also seems to confirm announcements will soon be on the way, but also mentions that they believe the park is removing the “SpinRock” Afterburn style flat ride, possibly to make room for whatever is on the way next year.
2018 - Valkyria - (10/4/16) For the 2018 season Liseberg has confirmed a new attraction named "Valkyria" is on the way that will expand upon the Norse mythos themes of Balder and Loke with the addition of a new B&M Dive Machine coaster. Valkyria will stand 154.2 feet tall, drop 164 feet and his a top speed of 65.2mph over the 2,296.6 feet of track. This will be one of the 6-across seated smaller Dive Machine models (DM6) featuring 3-rows of floorless style seating per train. It will feature a great visual of the vertical dive dropping down into a dark hole into an underground tunnel.
This new coaster will actually replace the park's Kanonen (Intamin) launched coaster. You can see some early visual concept artwork of the new coaster included in the video above for Loke.