I talked with someone from Gotland Ring (one of the owners if I understood correctly) at Ahvenisto (Hämeenlinna, Finland) in september, and he told me the extented version should be ready for STCC race.
(But he also claimed it's fancier track than Ahvenisto (or Appara as it's called) so I'm not sure if you can trust his word
)
Threre was also something about the track on Finnish TV2 in Ruutulippu program. JJ Lehto and Hannu Mikkola driving Audi's there... how ever, based on those short clips, I understood the dlong layout is almost ready already.