As Eureka discussion keeps popping up in other threads, I thought I'd revive this thread.
My interpretation of DW's CEO mentioning they're "looking at" bringing back the "mine ride" as: that they're looking at a new ride. I agree with others who have said it's tied too much into TRRR's infrastructure; the track and interior is likely not salvageable; and might not be insurable.
If the replacement mine ride goes into the same site, in or around a new mountain, there's now more height to work with. Going by the picture by Parkz below, if the lake is removed with TRRR, the Mine ride could go all the way down to even below the current waterline.
Image from Parkz - Original use here.
For posterity, here's recent threads that mention Eureka/'Mine Ride':
- Dreamworld Focuses on Iconic, Memorable Experiences in 2017
- Storm damage of Eureka Mountain (loosely related).