Not sure if this has been mentioned but Gardaland are getting a Sub-Terra style attraction in 2013!
And there's a website with comics etc...MerlinMania Forum said:-Gardaland were working with ABC rides to design an indoor drop tower attraction for 2013.
-Alton Towers were planning on using the same ride system in the Black Hole tent for 2012.
-The original plans for SW7 weren't ready in time, SW7 back-up plan was used, therefore the Drop tower ride had to be moved.
-There was no room elsewhere in X Sector for the ride, meaning the detailed plans towers had, had to be dropped.
-Towers took the half completed plans for Genetix, and put it in FV. (Sub-Terra). This is why Sub-Terra is so incomplete.
-Gardaland plan to open the original in 2013 as planned.
So basically Sub-Terra is (possibly) just a draft version of Genetix, created from half completed plans.