A strata coaster is a coaster with height or drop of at least 400 ft. It was just Kingda aka and Top Thrill Dragster/ Top Thrill 2. (A giga coaster is at least 300 ft, like Millennium Force at Cedar Park
The press release by Six Flags was a little vague, but announced a new coaster coming in 2026 in Kingda’s space. So maybe it is just being reimagined the way Top Thrill was recently. They said the new coaster would break multiple world records. Crossing my fingers that they keep the strata designation, because that’s the only reason this is general news anyway, Kingda Ka was a huge deal.