Unless the supposed giga also goes back behind adventure Express and banshee there is not enough room in the DA area. B&m cannot pull off quick transitions. A giga in that area would be a little bigger than i305's footprint. B&m needs lots of room. Fury goes from the back of the park around to the front and around toward intimidator. If a b&m giga goes in that space it will be another POS like raging bull.
With the plans cancelled for CGA's hypercoaster due to lack of chain performance maybe CF passed on the giga and is putting in a wing or dive?