Construction update from Grona Lund. The first inversion, a zero-g roll, is almost complete.
Source: Starparc.be - http://starparc.be/2018/03/decouvrez-en-images-le-chantier-de-la-grande-nouveaute-que-proposera-en-2020-le-parc-d-attractions-suedois-grona-lund-un-grand-huit